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Testimony
of
JOEL
C. WILLEMSSEN
Managing Director, Information Technology Issues
United States General Accounting Office
Mr. Chairman
and Members of the Committee:
I am pleased to be here today to discuss efforts to protect federal
agency information systems and our nation’s critical computer-dependent
infrastructures. Federal agencies, and other public and private entities,
rely extensively on computerized systems and electronic data to support
their missions. Accordingly, the security of these systems and data
is essential to avoiding disruptions in critical operations, data tampering,
fraud, and inappropriate disclosure of sensitive information.
Today, I will provide an overview of our recent reports on federal information
security and critical infrastructure protection. Specifically, I will
summarize the pervasive nature of federal system weaknesses, outline
the serious risks to federal operations, and then detail the specific
types of weaknesses identified at federal agencies. I will also discuss
the importance of establishing a strong agencywide security management
framework and how new evaluation and reporting requirements can improve
federal efforts. Next, I will provide an overview of the strategy described
in Presidential Decision Directive (PDD) 63 for protecting our nation’s
critical infrastructures from computer-based attacks. Finally, I will
summarize the results of our recent report on the National Infrastructure
Protection Center (NIPC), an interagency center housed in the Federal
Bureau of Investigation (FBI), which is responsible for providing analysis,
warning, and response capabilities for combating computer-based attacks.
RESULTS IN BRIEF
Because of our
government’s and our nation’s reliance on interconnected computer systems
to support critical operations and infrastructures, poor information
security could have potentially devastating implications for our country.
Despite the importance of maintaining the integrity, confidentiality,
and availability of important federal computerized operations, federal
computer systems are riddled with weaknesses that continue to put critical
operations and assets at risk. In
particular, federal agencies continue to have deficiencies in their
entitywide security programs that are critical to their success in ensuring
that risks are understood and that effective controls are selected and
implemented. The new information security provisions that you, Mr. Chairman,
and Senator Thompson originally introduced as legislation will be a
major catalyst for federal agencies to improve their security program
management. To help maintain the momentum that the new information security
reform provisions have generated, federal agencies must act quickly
to implement strong security program management.
A key element
of the strategy outlined in PDD 63 was establishing the NIPC as “a national
focal point” for gathering information on threats and facilitating the
federal government’s response to computer-based incidents. The
NIPC has initiated a variety of critical infrastructure protection efforts
that establish a foundation for future governmentwide efforts. However,
the analytical and information-sharing capabilities that PDD 63 asserts
are needed to protect the nation’s critical infrastructures have not
yet been achieved. We made various recommendations to the Assistant
to the President for National Security Affairs and the Attorney General
regarding the need to more fully define the role and responsibilities
of the NIPC, develop plans for establishing analysis and warning capabilities,
and formalize information-sharing relationships with private-sector
and federal entities. To improve our nation’s ability to respond to
computer-based incidents, the administration should consider these recommendations
as it reviews how the government is organized to deal with information
security issues.
BACKGROUND
Dramatic increases
in computer interconnectivity, especially in the use of the Internet,
are revolutionizing the way our government, our nation, and much of
the world communicate and conduct business. The benefits have been enormous.
Vast amounts of information are now literally at our fingertips, facilitating
research on virtually every topic imaginable; financial and other business
transactions can be executed almost instantaneously, often on a 24-hour-a-day
basis; and electronic mail, Internet web sites, and computer bulletin
boards allow us to communicate quickly and easily with a virtually unlimited
number of individuals and groups.
In addition to
such benefits, however, this widespread interconnectivity poses significant
risks to our computer systems and, more important, to the critical operations
and infrastructures they support. For example, telecommunications, power
distribution, public health, national defense (including the military’s
warfighting capability), law enforcement, government, and emergency
services all depend on the security of their computer operations. Likewise,
the speed and accessibility that create the enormous benefits of the
computer age, if not properly controlled, allow individuals and organizations
to inexpensively eavesdrop on or interfere with these operations from
remote locations for mischievous or malicious purposes, including fraud
or sabotage.
Reports of attacks
and disruptions are growing. The number of computer security incidents
reported to the CERT Coordination Center® (CERT-CC)
rose from 9,859 in 1999 to 21,756 in 2000. For the first 6 months of
2001, 15,476 incidents were reported. As the number of individuals with
computer skills has increased, more intrusion or “hacking” tools have
become readily available and relatively easy to use. A potential hacker
can literally download tools from the Internet and “point and click”
to start a hack. According to a recent National Institute of Standards
and Technology publication, hackers post 30 to 40 new tools to hacking
sites on the Internet every month.
Recent attacks over the past 2 months illustrate
the risks. These attacks, referred to as Code Red, Code Red II, and
SirCam, have affected millions of computer users, shut down Web sites,
slowed Internet service, and disrupted business and government operations.
They have already reportedly caused billions of dollars of damage, and
their full effects have yet to be completely assessed. Code Red attacks
have reportedly (1) caused the White House to change its website address,
(2) forced the Department of Defense (DOD) to briefly shut down its
public websites, (3) infected Treasury’s Financial Management Service
causing it to disconnect its systems from the Internet, (4) caused outages
for users of Qwest’s high-speed Internet service nationwide, and (5)
delayed FedEx package deliveries. Our testimony last month provides
further details on the nature and impact of these attacks.
These are just
the latest episodes. The cost of last year’s ILOVEYOU virus is now
estimated to be more than $8 billion. Other incidents reported
in 2001 illustrate the problem further:
·
A hacker group by
the name of “PoizonB0x” defaced numerous government web sites, including
those of the Department of Transportation, the Administrative Office
of the U.S. Courts, the National Science Foundation, the National Oceanic
and Atmospheric Administration, the Princeton Plasma Physics Laboratory,
the General Services Administration, the U.S. Geological Survey, the
Bureau of Land Management, and the Office of Science & Technology
Policy. (Source: Attrition.org., March 19, 2001.)
·
The “Russian Hacker
Association” offered over the Internet an e-mail bombing system that
would destroy a person’s “web enemy” for a fee. (Source: UK Ministry
of Defense Joint Security Coordination Center.)
Government officials
are increasingly concerned about attacks from individuals and groups
with malicious intent, such as crime, terrorism, foreign intelligence
gathering, and acts of war. According to the FBI, terrorists, transnational
criminals, and intelligence services are quickly becoming aware of and
using information exploitation tools such as computer viruses, Trojan
horses, worms, logic bombs, and eavesdropping sniffers that can destroy,
intercept, or degrade the integrity of and deny access to data.
As greater amounts of money are
transferred through computer systems, as more sensitive economic and
commercial information is exchanged electronically, and as the nation’s
defense and intelligence communities increasingly rely on commercially
available information technology, the likelihood that information attacks
will threaten vital national interests increases. In addition, the disgruntled
organization insider is a significant threat, since such individuals
with little knowledge about computer intrusions often have knowledge
that allows them to gain unrestricted access and inflict damage or steal
assets.
WEAKNESSES IN FEDERAL SYSTEMS REMAIN PERVASIVE
Since 1996, our
analyses of information security at major federal agencies have shown
that federal systems were not being adequately protected from computer-based
threats, even though these systems process, store, and transmit enormous
amounts of sensitive data and are indispensable to many federal agency
operations. In September 1996, we reported that serious weaknesses had
been found at 10 of the 15 largest federal agencies, and we concluded
that poor information security was a widespread federal problem with
potentially devastating consequences.
In 1998 and in 2000, we analyzed audit results for 24 of the largest
federal agencies; both analyses found that all 24 agencies had significant
information security weaknesses.
As a result of these analyses, we have identified information security
as a government wide high-risk issue in reports to the Congress since
1997—most recently in January 2001.
Our most recent
analysis, last April, of reports published since July 1999, showed that
federal computer systems continued to be riddled with weaknesses that
put critical operations and assets at risk.
Weaknesses continued to be reported in each of the 24 agencies covered
by our review, and they covered all six major areas of general controls—the
policies, procedures, and technical controls that apply to all or a
large segment of an entity’s information systems and help ensure their
proper operation. These six areas are (1) security program management,
which provides the framework for ensuring that risks are understood
and that effective controls are selected and properly implemented, (2)
access controls, which ensure that only authorized individuals can read,
alter, or delete data, (3) software development and change controls,
which ensure that only authorized software programs are implemented,
(4) segregation of duties, which reduces the risk that one individual
can independently perform inappropriate actions without detection, (5)
operating systems controls, which protect sensitive programs that support
multiple applications from tampering and misuse, and (6) service continuity,
which ensures that computer-dependent operations experience no significant
disruptions.
Our April analysis
also showed that the scope of audit work performed has continued to
expand to more fully cover all six major areas of general controls at
each agency. Not surprisingly, this has led to the identification of
additional areas of weakness at some agencies. While these increases
in reported weaknesses are disturbing, they do not necessarily mean
that information security at federal agencies is getting worse. They
more likely indicate that information security weaknesses are becoming
more fully understood—an important step toward addressing the overall
problem. Nevertheless, the results leave no doubt that serious, pervasive
weaknesses persist. As auditors increase their proficiency and the body
of audit evidence expands, it is probable that additional significant
deficiencies will be identified.
Most of the audits
covered in our analysis were performed as part of financial statement
audits. At some agencies with primarily financial missions, such as
the Department of the Treasury and the Social Security Administration,
these audits covered the bulk of mission-related operations. However,
at agencies whose missions are primarily nonfinancial, such as DOD and
the Department of Justice, the audits may provide a less complete picture
of the agency’s overall security posture because the audit objectives
focused on the financial statements and did not include evaluations
of systems supporting nonfinancial operations. In response to congressional
interest, during fiscal years 1999 and 2000, we expanded our audit focus
to cover a wider range of nonfinancial operations. We expect this trend
to continue.
RISKS TO FEDERAL OPERATIONS ARE SUBSTANTIAL
To fully understand
the significance of the weaknesses we identified, it is necessary to
link them to the risks they present to federal operations and assets.
Virtually all federal operations are supported by automated systems
and electronic data, and agencies would find it difficult, if not impossible,
to carry out their missions and account for their resources without
these information assets. Hence, the degree of risk caused by security
weaknesses is extremely high.
The weaknesses
identified place a broad array of federal operations and assets at risk
of fraud, misuse, and disruption. For example, weaknesses at the Department
of the Treasury increase the risk of fraud associated with billions
of dollars of federal payments and collections, and weaknesses at DOD
increase the vulnerability of various military operations. Further,
information security weaknesses place enormous amounts of confidential
data, ranging from personal and tax data to proprietary business information,
at risk of inappropriate disclosure. For example, in 1999, a Social
Security Administration employee pled guilty to unauthorized access
to the administration’s systems. The related investigation determined
that the employee had made many unauthorized queries, including obtaining
earnings information for members of the local business community.
More recent audits
in 2001 show that serious weaknesses continue to be a problem and that
critical federal operations and assets remain at risk.
·
In August, we reported
that significant and pervasive weaknesses placed the Department of Commerce’s
systems at risk. Many of these systems are considered critical to national
security, national economic security, and public health and safety.
Nevertheless, we demonstrated that individuals, both within and outside
of Commerce, could gain unauthorized access to Commerce systems and
thereby read, copy, modify, and delete sensitive economic, financial,
personnel, and confidential business data. Moreover, intruders could
disrupt the operations of systems that are critical to the mission of
the department.
Also, Commerce’s inspector general has also reported significant computer
security weaknesses in several of the department’s bureaus and, in February
2001, reported multiple material information security weaknesses affecting
the department’s ability to produce accurate data for financial statements.
·
In July, we reported
serious weaknesses in systems maintained by the Department of Interior’s
National Business Center, a facility processing more than $12 billion
annually in payments that place sensitive financial and personnel information
at risk of unauthorized disclosure, critical operations at risk of disruption,
and assets at risk of loss. While Interior has made progress in correcting
previously identified weaknesses, the newly identified weaknesses impeded
the center’s ability to (1) prevent and detect unauthorized changes,
(2) control electronic access to sensitive information, and (3) restrict
physical access to sensitive computing areas.
·
In March, we reported
that although the DOD’s Department-wide Information Assurance Program
had made progress in addressing information assurance, it had not yet
met its goals of integrating information assurance with mission readiness
criteria, enhancing information assurance capabilities and awareness
of department personnel, improving monitoring and management of information
assurance operations, and establishing a security management infrastructure.
As a result, DOD was unable to accurately determine the status of information
security across the department, the progress of its improvement efforts,
or the effectiveness of its information security initiatives.
·
In February, the Department
of Health and Human Services’ Inspector General again reported serious
control weaknesses affecting the integrity, confidentiality, and availability
of data maintained by the department.
Most significant were weaknesses associated with the department’s Centers
for Medicare and Medicaid Services (CMS), formerly known as the Health
Care Financing Administration, which was responsible, during fiscal
year 2000, for processing more than $200 billion in Medicare expenditures.
CMS relies on extensive data processing operations at its central office
to maintain administrative data, such as Medicare enrollment, eligibility
and paid claims data, and to process all payments for managed care.
Significant weaknesses were also reported for the Food and Drug Administration
and the department’s Division of Financial Operations.
These types of
risks, if inadequately addressed, may limit the government’s ability
to take advantage of new technology and improve federal services through
electronic means. For example, this past February, we reported on serious
control weaknesses in the Internal Revenue Service’s (IRS) electronic
filing system, noting that failure to maintain adequate security could
erode public confidence in electronic filing, jeopardize the Service’s
ability to meet its goal of 80 percent of returns being filed electronically
by 2007, and deprive it of financial and other anticipated benefits.
Specifically, we found that, during the 2000 tax filing season, IRS
did not adequately secure access to its electronic filing systems or
to the electronically transmitted tax return data those systems contained.
We demonstrated that unauthorized individuals, both within and outside
IRS, could have gained access to these systems and viewed, copied, modified,
or deleted taxpayer data. In addition, the weaknesses we identified
jeopardized the security of the sensitive business, financial, and taxpayer
data on other critical IRS systems that were connected to the electronic
filing systems. The IRS Commissioner has stated that, in response to
recommendations we made, IRS completed corrective action for all the
critical access control vulnerabilities we identified before the 2001
filing season and that, as a result, the electronic filing systems now
satisfactorily meet critical federal security requirements to protect
the taxpayer.
As part of our audit follow up activities, we plan to evaluate the effectiveness
of IRS’ corrective actions.
Addressing weaknesses
such as those we identified in the IRS’s electronic filing system is
especially important in light of the administration’s plans to improve
government services by expanding use of the Internet and other computer-facilitated
operations—collectively referred to as electronic government, or E-government.
Specific initiatives proposed for fiscal year 2002 include expanding
electronic means for (1) providing information to citizens, (2) handling
procurement-related transactions, (3) applying for and managing federal
grants, and (4) providing citizens information on the development of
specific federal rules and regulations. Anticipated benefits include
reducing the expense and difficulty of doing business with the government,
providing citizens improved access to government services, and making
government more transparent and accountable. Success in achieving these
benefits will require agencies and others involved to ensure that the
systems supporting E-government are protected from fraud, inappropriate
disclosures, and disruption. Without this protection, confidence in
E-government may be diminished, and the related benefits never fully
achieved.
CONTROL WEAKNESSES
ACROSS AGENCIES ARE SIMILAR
Although the
nature of agency operations and their related risks vary, striking similarities
remain in the specific types of general control weaknesses reported
and in their serious negative impact on an agency’s ability to ensure
the integrity, availability, and appropriate confidentiality of its
computerized operations. Likewise, similarities exist in the corrective
actions they must take. The following sections describe the six areas
of general controls and the specific weaknesses that were most widespread
at the agencies covered by our analysis.
Security Program
Management
Each organization
needs a set of management procedures and an organizational framework
for identifying and assessing risks, deciding what policies and controls
are needed, periodically evaluating the effectiveness of these policies
and controls, and acting to address any identified weaknesses. These
are the fundamental activities that allow an organization to manage
its information security risks in a cost effective manner rather than
reacting to individual problems in an ad-hoc manner only after a violation
has been detected or an audit finding reported.
Despite the importance
of this aspect of an information security program, poor security program
management continues to be a widespread problem. Virtually all the agencies
for which this aspect of security was reviewed had deficiencies. Specifically,
many had not (1) developed security plans for major systems based on
risk (2) documented security policies, and (3) implemented a program
for testing and evaluating the effectiveness of the controls they relied
on. As a result, these agencies
·
were not fully aware
of the information security risks to their operations,
·
had accepted an unknown
level of risk by default rather than consciously deciding what level
of risk was tolerable,
·
had a false sense
of security because they were relying on ineffective controls, and
·
could not make informed
judgments as to whether they were spending too little or too much of
their resources on security.
Access Controls
Access controls
limit or detect inappropriate access to computer resources (data, equipment,
and facilities), thereby protecting these resources against unauthorized
modification, loss, and disclosure. Access controls include physical
protections—such as gates and guards—as well as logical controls, which
are controls built into software that require users to authenticate
themselves (through the use of secret passwords or other identifiers)
and limit the files and other resources that authenticated users can
access and the actions that they execute. Without adequate access controls,
unauthorized individuals, including outside intruders and former employees,
can surreptitiously read and copy sensitive data and make undetected
changes or deletions for malicious purposes or personal gain. Also,
authorized users can intentionally or unintentionally modify or delete
data or execute changes that are outside their span of authority.
For access controls
to be effective, they must be properly implemented and maintained. First,
an organization must analyze the responsibilities of individual computer
users to determine what type of access (e.g., read, modify, delete)
they need to fulfill their responsibilities. Then, specific control
techniques, such as specialized access control software, must be implemented
to restrict access to these authorized functions. Such software can
be used to limit a user’s activities associated with specific systems
or files and keep records of individual users’ actions on the computer.
Finally, access authorizations and related controls must be maintained
and adjusted on an ongoing basis to accommodate new and departing employees,
as well as changes in users’ responsibilities and related access needs.
Significant access
control weaknesses were reported for all the agencies covered by our
analysis, as shown by the following examples:
·
Accounts and passwords
for individuals no longer associated with the agency were not deleted
or disabled nor were they adjusted for those whose responsibilities,
and thus need to access certain files, changed. As a result, at one
agency, former employees and contractors could still and in many cases
did read, modify, copy, or delete data. At this same agency, even after
160 days of inactivity, 7,500 out of 30,000 users’ accounts had not
been deactivated.
·
Users were not required
to periodically change their passwords.
·
Managers did not precisely
identify and document access needs for individual users or groups of
users. Instead, they provided overly broad access privileges to very
large groups of users. As a result, far more individuals than necessary
had the ability to browse and, sometimes, modify or delete sensitive
or critical information. At one agency, all 1,100 users were granted
access to sensitive system directories and settings. At another agency,
20,000 users had been provided access to one system without written
authorization.
·
Use of default, easily
guessed, and unencrypted passwords significantly increased the risk
of unauthorized access. During testing at one agency, we were able to
guess many passwords based on our knowledge of commonly used passwords
and were able to observe computer users’ keying in passwords and then
use those passwords to obtain “high level” system administration privileges.
·
Software access controls
were improperly implemented, resulting in unintended access or gaps
in access-control coverage. At one agency data center, all users, including
programmers and computer operators, had the ability to read sensitive
production data, increasing the risk that such sensitive information
could be disclosed to unauthorized individuals. Also, at this agency,
certain users had the unrestricted ability to transfer system files
across the network, increasing the risk that unauthorized individuals
could gain access to the sensitive data or programs.
To illustrate
the risks associated with poor authentication and access controls, in
recent years we have begun to incorporate network vulnerability testing
into our audits of information security. Such tests involve attempting—with
agency cooperation—to gain unauthorized access to sensitive files and
data by searching for ways to circumvent existing controls, often from
remote locations. Our auditors have been successful, in almost every
test, in readily gaining unauthorized access that would allow both internal
and external intruders to read, modify, or delete data for whatever
purpose they had in mind. Further, user activity was inadequately monitored.
Also, much of the activity associated with our intrusion testing has
not been recognized and recorded, and the problem reports that were
recorded did not recognize the magnitude of our activity or the severity
of the security breaches we initiated.
Software Development and Change Control
Controls over
software development and changes prevent unauthorized software programs
or modifications to programs from being implemented. Key aspects of
such controls are ensuring that (1) software changes are properly authorized
by the managers responsible for the agency program or operations that
the application supports, (2) new and modified software programs are
tested and approved before they are implemented, and (3) approved software
programs are maintained in carefully controlled libraries to protect
them from unauthorized changes and ensure that different versions are
not misidentified.
Such controls
can prevent errors in software programming as well as malicious efforts
to insert unauthorized computer program code. Without adequate controls,
incompletely tested or unapproved software can result in erroneous data
processing that, depending on the application, could lead to losses
or faulty outcomes. In addition, individuals could surreptitiously modify
software programs to include processing steps or features that could
later be exploited for personal gain or sabotage.
Weaknesses in
software program change controls were identified for almost all the
agencies for which these controls were evaluated. Examples of weaknesses
in this area included the following:
·
Testing procedures
were undisciplined and did not ensure that implemented software operated
as intended. For example, at one agency, senior officials authorized
some systems for processing without testing access controls to ensure
that they had been implemented and were operating effectively. At another
agency, documentation was not retained to demonstrate user testing and
acceptance.
·
Implementation procedures
did not ensure that only authorized software was used. In particular,
procedures did not ensure that emergency changes were subsequently tested
and formally approved for continued use and that implementation of “locally
developed” (unauthorized) software programs was prevented or detected.
·
Agencies’ policies
and procedures frequently did not address the maintenance and protection
of program libraries.
Segregation
of Duties
Segregation of
duties refers to the policies, procedures, and organizational structure
that help ensure that one individual cannot independently control all
key aspects of a process or computer-related operation and thereby conduct
unauthorized actions or gain unauthorized access to assets or records
without detection. For example, one computer programmer should not be
allowed to independently write, test, and approve program changes.
Although segregation
of duties alone will not ensure that only authorized activities occur,
inadequate segregation of duties increases the risk that erroneous or
fraudulent transactions could be processed, improper program changes
implemented, and computer resources damaged or destroyed. For example,
·
an individual who
was independently responsible for authorizing, processing, and reviewing
payroll transactions could inappropriately increase payments to selected
individuals without detection or
·
a computer programmer
responsible for authorizing, writing, testing, and distributing program
modifications could either inadvertently or deliberately implement computer
programs that did not process transactions in accordance with management’s
policies or that included malicious code.
Controls to ensure
appropriate segregation of duties consist mainly of documenting, communicating,
and enforcing policies on group and individual responsibilities. Segregation
of duties can be enforced by a combination of physical and logical access
controls and by effective supervisory review. We identified weaknesses
in segregation of duties at most agencies covered by our analysis. Common
problems involved computer programmers and operators who were authorized
to perform a variety of duties, thus providing them the ability to independently
modify, circumvent, and disable system security features. For example,
at one data center, a single individual could independently develop,
test, review, and approve software changes for implementation.
Segregation of
duties problems were also identified related to transaction processing.
For example, at one agency, 11 staff members involved with procurement
had system access privileges that allowed them to individually request,
approve, and record the receipt of purchased items. In addition, 9 of
the 11 staff members had system access privileges that allowed them
to edit the vendor file, which could result in fictitious vendors being
added to the file for fraudulent purposes. For fiscal year 1999, we
identified 60 purchases, totaling about $300,000, that were requested,
approved, and receipt-recorded by the same individual.
Operating System Software Controls
Operating system
software controls limit and monitor access to the powerful programs
and sensitive files associated with the computer systems operation.
Generally, one set of system software is used to support and control
a variety of applications that may run on the same computer hardware.
System software helps control and coordinate the input, processing,
output, and data storage associated with all applications that run on
the system. Some system software can change data and program code on
files without leaving an audit trail or can be used to modify or delete
audit trails. Examples of system software include the operating system,
system utilities, program library systems, file maintenance software,
security software, data communications systems, and database management
systems.
Controls over
access to and modification of system software are essential in providing
reasonable assurance that operating system-based security controls are
not compromised and that the system will not be impaired. If controls
in this area are inadequate, unauthorized individuals might use system
software to circumvent security controls to read, modify, or delete
critical or sensitive information and programs. Also, authorized users
of the system may gain unauthorized privileges to conduct unauthorized
actions or to circumvent edits and other controls built into application
programs. Such weaknesses seriously diminish the reliability of information
produced by all applications supported by the computer system and increase
the risk of fraud, sabotage, and inappropriate disclosure. Further,
system software programmers are often more technically proficient than
other data processing personnel and, thus, have a greater ability to
perform unauthorized actions if controls in this area are weak.
The control concerns
for system software are similar to the access control issues and software
program change control issues discussed earlier. However, because of
the high level of risk associated with system software activities, most
entities have a separate set of control procedures that apply to them.
Weaknesses were identified at each agency for which operating system
controls were reviewed. A common type of problem reported was insufficiently
restricted access that made it possible for knowledgeable individuals
to disable or circumvent controls in a variety of ways. For example,
at one agency, system support personnel had the ability to change data
in the system audit log. As a result, they could have engaged in a wide
array of inappropriate and unauthorized activity and could have subsequently
deleted related segments of the audit log, thus diminishing the likelihood
that their actions would be detected.
Further, pervasive
vulnerabilities in network configuration exposed agency systems to attack.
These vulnerabilities stemmed from agencies’ failure to (1) install
and maintain effective perimeter security, such as firewalls and screening
routers, (2) implement current software patches, and (3) protect against
commonly known methods of attack.
Service Continuity Control
Finally, service
continuity controls ensure that when unexpected events occur, critical
operations will continue without undue interruption and that crucial,
sensitive data are protected. For this reason, an agency should have
(1) procedures in place to protect information resources and minimize
the risk of unplanned interruptions and (2) a plan to recover critical
operations should interruptions occur. These plans should consider the
activities performed at general support facilities, such as data processing
centers, as well as the activities performed by users of specific applications.
To determine whether recovery plans will work as intended, they should
be tested periodically in disaster simulation exercises.
Losing the capability
to process, retrieve, and protect electronically maintained information
can significantly affect an agency’s ability to accomplish its mission.
If controls are inadequate, even relatively minor interruptions can
result in lost or incorrectly processed data, which can cause financial
losses, expensive recovery efforts, and inaccurate or incomplete financial
or management information. Controls to ensure service continuity should
address the entire range of potential disruptions. These may include
relatively minor interruptions, such as temporary power failures or
accidental loss or erasure of files, as well as major disasters, such
as fires or natural disasters, that would require reestablishing operations
at a remote location. Service continuity controls include (1) taking
steps, such as routinely making backup copies of files, to prevent and
minimize potential damage and interruption, (2) developing and documenting
a comprehensive contingency plan, and (3) periodically testing the contingency
plan and adjusting it as appropriate.
Service continuity
control weaknesses were reported for most of the agencies covered by
our analysis. Examples of weaknesses included the following:
·
Plans were incomplete
because operations and supporting resources had not been fully analyzed
to determine which were the most critical and would need to be resumed
as soon as possible should a disruption occur.
·
Disaster recovery
plans were not fully tested to identify their weaknesses. For example,
periodic walkthroughs or unannounced tests of the disaster recovery
plan had not been performed. Conducting these types of tests provides
a scenario more likely to be encountered in the event of an actual disaster.
SECURITY PROGRAM MANAGEMENT CAN BE IMPROVED WITH NEW EVALUATION
AND REPORTING REQUIREMENTS
The audit reports
cited in this statement and in our prior information security reports
include many recommendations to individual agencies that address specific
weaknesses in the areas I have just described. It is each individual
agency’s responsibility to ensure that these recommendations are implemented.
Agencies have taken steps to address problems, and many have remedial
efforts underway. However, these efforts will not be fully effective
and lasting unless they are supported by a strong agencywide security
management framework.
Establishing
such a management framework requires that agencies take a comprehensive
approach that involves both (1) senior agency program managers who understand
which aspects of their missions are the most critical and sensitive
and (2) technical experts who know the agencies’ systems and can suggest
appropriate technical security control techniques. We studied the practices
of organizations with superior security programs and summarized our
findings in a May 1998 executive guide entitled
Information Security Management: Learning From Leading Organizations
(GAO/AIMD-98-68). Our study found that these organizations managed
their information security risks through a cycle of risk management
activities that included
·
assessing risks and
determining protection needs,
·
selecting and implementing
cost-effective policies and controls to meet these needs,
·
promoting awareness
of policies and controls and of the risks that prompted their adoption
among those responsible for complying with them, and
·
implementing a program
of routine tests and examinations for evaluating the effectiveness of
policies and related controls and reporting the resulting conclusions
to those who can take appropriate corrective action.
In addition,
a strong, centralized focal point can help ensure that the major elements
of the risk management cycle are carried out and serve as a communications
link among organizational units. Such coordination is especially important
in today’s highly networked computing environments.
Implementing
this cycle of risk management activities is the key to ensuring that
information security risks are adequately considered and addressed on
an ongoing, agencywide basis. Included within it are several steps that
agencies can take immediately. Specifically, they can (1) increase awareness,
(2) ensure that existing controls are operating effectively, (3) ensure
that software patches are up-to-date, (4) use automated scanning and
testing tools to quickly identify problems, (5) propagate their best
practices, and (6) ensure that their most common vulnerabilities are
addressed. Although none of these actions alone will ensure good security,
they take advantage of readily available information and tools and,
thus, do not involve significant new resources. As a result, they are
steps that can be made without delay.
Due to concerns
about the repeated reports of computer security weaknesses at federal
agencies, in 2000, you, Mr. Chairman, and Senator Thompson introduced
government information security reform legislation to require agencies
to implement the activities I have just described. This legislation
was enacted in late 2000 as part of the fiscal year 2001 National Defense
Authorization Act. In addition to requiring security program management
improvements, the new provisions require that both management and agency
inspectors general annually evaluate agency information security programs.
The Office of Management and Budget (OMB) has asked agencies to submit
the results of their program reviews and the results of their inspector
general’s independent evaluation this week. In accordance with the new
law, OMB plans to develop a summary report to the Congress later this
year. This summary report, and the subordinate agency reports, should
provide a more complete picture of the status of federal information
security than has previously been available, thereby providing the Congress
and OMB with an improved means of overseeing agency progress and identifying
areas needing improvement.
This
annual evaluation and reporting process is an important mechanism, previously
missing, for holding agencies accountable for implementing effective
security and managing the problem from a governmentwide perspective.
We are currently reviewing agency implementation of the new provisions.
CRITICAL INFRASTRUCTURE PROTECTION EFFORTS SUPPLEMENT
TRADITIONAL INFORMATION SECURITY
Beyond the risks
of computer-based attacks on critical federal operations, the federal
government has begun to address the risks of computer-based attacks
on our nation’s computer-dependent critical infrastructures,
such as electric power distribution, telecommunications, and essential
government services. Although these efforts pertain to many traditional
computer security issues, such as maintaining the integrity, confidentiality,
and availability of important computerized operations, they focus primarily
on risks of national importance and encompass efforts to ensure the
security of privately controlled critical infrastructures
The recent history of federal initiatives to address
these computer-based risks includes the following
·
In June 1995,
a Critical Infrastructure Working Group, led by the Attorney General,
was formed to (1) identify critical
infrastructures and assess the scope and nature of threats to them,
(2) survey existing government mechanisms for addressing these threats,
and (3) propose options for a full-time group to consider long-term
government responses to threats to critical infrastructures. The working
group identified critical infrastructures, characterized threats to
them, and recommended creating a commission to investigate such issues.
·
In February 1996,
the National Defense Authorization Act required the executive branch
to provide a report to the Congress on the policies and plans for developing
capabilities to defend against computer-based attacks, such as warnings
of strategic attacks against the national information infrastructure.
Later that year, the Permanent Subcommittee on Investigations, Senate
Committee on Governmental Affairs, began to hold hearings on security
in cyberspace. Since then, congressional interest in protecting national
infrastructures has remained strong.
·
In July 1996, in response
to the recommendation of the 1995 working group, the President's
Commission on Critical Infrastructure Protection was established to
further investigate the nation's vulnerability to both cyber and physical
threats.
·
In October 1997, the President’s Commission issued its
report,
which described the potentially devastating implications of poor information
security from a national perspective.
In response to the commission’s report, the President
initiated actions to implement a cooperative public/private approach
to protecting the nation’s critical infrastructures by issuing PDD 63
in May 1998. The directive called for a range of activities to improve
federal agency security programs, establish a partnership between the
government and private sector, and improve the nation’s ability to detect
and respond to serious attacks. The directive established critical infrastructure
protection as a national goal, stating that, by the close of 2000, the
United States was to have achieved an initial operating capability and,
no later than 2003, the capability to protect the nation's critical
infrastructures from intentional destructive acts.
To accomplish its goals, PDD-63 designated the National
Coordinator for Security, Infrastructure Protection, and Counter-Terrorism,
who reports to the Assistant to the President for National Security
Affairs, to oversee the development and implementation of national policy
in this area. The directive also established the National Plan Coordination
staff, which became the Critical Infrastructure Assurance Office, an
interagency office housed in the Department of Commerce responsible
for planning infrastructure protection efforts. It further authorized
the FBI to expand its National Infrastructure Protection Center (NIPC)
and directed the NIPC to gather information on threats and coordinate
the federal government’s response to incidents affecting infrastructures.
In addition, the directive designated “lead agencies”
to work with private-sector and government entities in each of eight
infrastructure sectors and five special function areas. For example,
the Department of the Treasury is responsible for working with the banking
and finance sector, and the Department of Energy is responsible for
working with the electric power industry. Similarly, regarding special
function areas, DOD is responsible for national defense, and the Department
of State is responsible for foreign affairs. To facilitate private-sector
participation, PDD 63 encouraged the creation of Information Sharing
and Analysis Centers (ISACs) that could serve as mechanisms for gathering,
analyzing, and appropriately sanitizing and disseminating information
to and from infrastructure sectors and the NIPC. Figure 1 depicts the
entities with critical infrastructure protection responsibilities as
outlined by PDD 63.
Figure 1: Critical Infrastructure
Protection Responsibilities as Outlined by PPD 63
Source: The Critical Infrastructure Assurance Office.
Shortly
after the initial issuance of PDD 63, we reported on the importance
of developing a governmentwide strategy that clearly defines and coordinates
the roles of new and existing federal entities to ensure governmentwide
cooperation and support for PDD 63.
Specifically, we noted that several of PDD 63’s provisions appeared
to overlap with existing requirements prescribed in the Paperwork Reduction
Act; OMB Circular A-130, Appendix III; the Computer Security Act; and
the Clinger-Cohen Act. In addition, some of the directive’s objectives
were similar to objectives being addressed by other federal entities,
such as developing a federal incident handling capability, which was
then in the process of being addressed by the National Institute of
Standards and Technology and the federal Chief Information Officers
Council.
At that time, we recommended that OMB, which, by law, is responsible
for overseeing federal information security, and the Assistant to the
President for National Security Affairs ensure such coordination.
In July 2000, we reported that a variety of activities
had been undertaken in response to PDD 63, including developing and
reviewing individual agency critical infrastructure protection plans,
identifying and evaluating information security standards and best practices,
and the White House’s issuing its National
Plan for Information Systems Protection
as a first major element of a more comprehensive strategy to be
developed.
At that time, we reiterated the importance of defining and clarifying
organizational roles and responsibilities, noting that numerous federal
entities were collecting, analyzing, and disseminating data or guidance
on computer security vulnerabilities and incidents and that clarification
would help ensure a common understanding of (1) how the activities of
these many organizations interrelate, (2) who should be held accountable
for their success or failure, and (3) whether such activities will effectively
and efficiently support national goals.
The administration is currently reviewing the federal strategy
for critical infrastructure protection that was originally outlined
in PDD 63. On May 9, the White House issued a statement saying that
it was working with federal agencies and private industry to prepare
a new version of a “national plan for cyberspace security and critical
infrastructure protection” and reviewing how the government is organized
to deal with information security issues.
NIPC PROGRESS
HAS BEEN MIXED
A key element of the strategy outlined in PPD 63
was the establishment of the NIPC as “a national focal point” for gathering
information on threats and facilitating the federal government’s response
to computer-based incidents. Specifically, the directive assigned the
NIPC the responsibility for providing
comprehensive analyses on threats, vulnerabilities, and attacks; issuing
timely warnings on threats and attacks; facilitating and coordinating
the government’s response to computer-based incidents; providing law
enforcement investigation and response, monitoring reconstitution of
minimum required capabilities after an infrastructure attack; and promoting
outreach and information sharing.
In April, we
reported on the NIPC’s progress in developing national capabilities
for analyzing threat and vulnerability data and issuing warnings, responding
to attacks, and developing information-sharing relationships with government
and private-sector entities. Overall, we found that
while progress in developing these capabilities was mixed, the
NIPC had initiated a variety of critical infrastructure protection efforts
that had laid a foundation for future governmentwide efforts. In addition,
the NIPC had provided valuable support and coordination related to investigating
and otherwise responding to attacks on computers. However, at the close
of our review, the analytical and information-sharing capabilities that
PDD 63 asserted are needed to protect the nation’s critical infrastructures
had not yet been achieved, and the NIPC had developed only limited warning
capabilities. Developing such capabilities is a formidable task that
experts say will take an intense interagency effort.
Multiple Factors Have Limited Development of Analysis and Warning
Capabilities
PDD 63 assigns
the NIPC responsibility for developing analytical capabilities to provide
comprehensive information on changes in threat conditions and newly
identified system vulnerabilities, as well as timely warnings of potential
and actual attacks. This responsibility requires obtaining and analyzing
intelligence, law enforcement, and other information to identify patterns
that may signal that an attack is underway or imminent.
Since its establishment in 1998, the NIPC has issued
a variety of analytical products, most of which have been tactical analyses
pertaining to individual incidents. These analyses have included (1)
situation reports related to law enforcement investigations, including
denial-of-service attacks that affected numerous Internet-based entities,
such as eBay and Yahoo, and (2) analytical support of a counterintelligence
investigation. In addition, the NIPC has issued a variety of publications,
most of which were compilations of information previously reported by
others with some NIPC analysis
The use of strategic analysis to determine the potential
broader implications of individual incidents has been limited. Such
analysis looks beyond one specific incident to consider a broader set
of incidents or implications that may indicate a potential threat of
national importance. Identifying such threats assists in proactively
managing risk, including evaluating the risks associated with possible
future incidents and effectively mitigating the impact of such incidents.
Three factors have hindered the NIPC’s ability to
develop strategic analytical capabilities.
·
First, there is no generally accepted
methodology for analyzing strategic cyber-based threats. For example,
there is no standard terminology, no standard set of factors to consider,
and no established thresholds for determining the sophistication of
attack techniques. According to officials in the intelligence and national
security community, developing such a methodology would require an intense
interagency effort and dedication of resources.
·
Second, the NIPC has sustained prolonged
leadership vacancies and does not have adequate staff expertise, in
part because other federal agencies have not provided the originally
anticipated number of detailees. For example, at the close of our review
in February, the position of Chief of the Analysis and Warning Section,
which was to be filled by the Central Intelligence Agency, had been
vacant for about half of the NIPC’s 3-year existence. In addition, the
NIPC had been operating with only 13 of the 24 analysts that NIPC officials
estimate are needed to develop analytical capabilities.
·
Third, the NIPC did not have
industry-specific data on factors such as critical
system components, known vulnerabilities, and interdependencies. Under
PDD 63, such information is to be developed for each of eight industry
segments by industry representatives and the designated federal lead
agencies. However, at the close of our work in February, only three
industry assessments had been partially completed, and none
had been provided to the NIPC.
To provide a warning capability,
the NIPC established a Watch and
Warning Unit that monitors the Internet and other media 24 hours a day
to identify reports of computer-based attacks. As of February, the unit
had issued 81 warnings and related products since 1998, many of which
were posted on the NIPC’s Internet web site. While some warnings were
issued in time to avert damage, most of the warnings, especially those
related to viruses, pertained to attacks underway. The NIPC’s ability
to issue warnings promptly is impeded because of (1) a lack of
a comprehensive governmentwide or nationwide framework for promptly
obtaining and analyzing information on imminent attacks, (2) a shortage
of skilled staff, (3) the need to ensure that the NIPC does not raise
undue alarm for insignificant incidents, and (4) the need to ensure
that sensitive information is protected, especially when such information
pertains to law enforcement investigations underway.
However, I want to emphasize a more fundamental
impediment in the NIPC’s progress that echoes our previously reported
concerns about the need for a more clearly defined critical infrastructure
protection strategy. Specifically, evaluating its progress in developing
analysis and warning capabilities was difficult because the entities
involved in the government’s critical infrastructure protection efforts
did not share a common interpretation of the NIPC’s roles and responsibilities.
Further, the relationships between the Center, the FBI, and the National
Coordinator for Security, Infrastructure Protection, and Counter-Terrorism
at the National Security Council were unclear regarding who has direct
authority for setting NIPC priorities and procedures and providing NIPC
oversight. In addition, its own plans for further developing its analytical
and warning capabilities were fragmented and incomplete. As a result,
no specific priorities, milestones, or program performance measures
existed to guide NIPC’s actions or provide a basis for evaluating its
progress.
In our April report, we recognized that the administration
was reviewing the government’s infrastructure protection strategy and
recommended that, as the administration proceeds, the Assistant to the
President for National Security Affairs, in coordination with pertinent
executive agencies,
·
establish a capability for strategically
analyzing computer-based threats, including developing related methodology,
acquiring staff expertise, and obtaining infrastructure data,
·
require development of a comprehensive
data collection and analysis framework and ensure that national watch
and warning operations for computer-based attacks are supported by sufficient
staff and resources, and
·
clearly define the role of the NIPC in
relation to other government and private-sector entities.
In commenting on a draft of the report, the Special
Assistant to the President and Senior Director for Legislative Affairs
at the National Security Council stated that our report highlighted
the need for a review of the roles and responsibilities of the federal
agencies involved in U.S. critical infrastructure protection support.
In addition, he stated that the administration will consider our recommendations
as it reviews federal cyber activities to determine how the critical
infrastructure protection function should be organized. The Special
Assistant to the President added that some functions might be better
accomplished by distributing the tasks across several existing federal
agencies, creating a “virtual analysis center” that would provide not
only a governmentwide analysis and reporting capability, but that could
also support rapid dissemination of cyber threat and warning information.
NIPC Coordination and Technical Support Have
Benefited Investigative and Response Capabilities
PDD 63 directed the NIPC to provide the principal
means of facilitating and coordinating the federal government’s response
to computer-based incidents. In response, the NIPC undertook efforts
in two major areas: providing coordination and technical support to
FBI investigations and establishing crisis-management capabilities.
First, the NIPC provided valuable coordination
and technical support to FBI field offices, that established special
squads and teams and one regional task force in its field offices to
address the growing number of computer crime cases. The NIPC supported
these investigative efforts by (1) coordinating investigations among
FBI field offices, thereby bringing a national perspective to individual
cases, (2) providing technical support in the form of analyses, expert
assistance for interviews, and tools for analyzing and mitigating computer-based
attacks, and (3) providing administrative support to NIPC field agents.
For example, the NIPC produced over 250 written technical reports during
1999 and 2000, developed analytical tools to assist in investigating
and mitigating computer-based attacks, and managed the procurement and
installation of hardware and software tools for the NIPC field squads
and teams
While these efforts benefited investigative efforts,
FBI and NIPC officials told us that increased computer capacity and
data transmission capabilities would improve their ability to promptly
analyze the extremely large amounts of data that are associated with
some cases. In addition, FBI field offices were not yet providing the
NIPC with the comprehensive information that NIPC officials say is needed
to facilitate prompt identification and response to cyber incidents.
According to field office officials, some information on unusual or
suspicious computer-based activity had not been reported because it
did not merit opening a case and was deemed to be insignificant. To
address this problem, the NIPC established new performance measures
related to reporting
Second, the NIPC developed crisis-management capabilities
to support a multiagency response to the most serious incidents from
the FBI’s Washington, D.C., Strategic Information Operations Center.
From 1998 through early 2001, seven crisis-action teams had been activated
to address potentially serious incidents and events, such as the Melissa
virus in 1999 and the days surrounding the transition to the year 2000,
and related procedures have been formalized. In addition, the NIPC coordinated
the development of an emergency law enforcement plan to guide the response
of federal, state, and local entities.
To help ensure an adequate response to the growing
number of computer crimes, we recommended in our April report that the
Attorney General, the FBI Director, and the NIPC Director take steps
to (1) ensure that the NIPC has access to needed computer and communications
resources and (2) monitor the implementation of new performance measures
to ensure that field offices fully report information on potential computer
crimes to the NIPC.
Progress in Establishing Information-Sharing
Relationships Has Been Mixed
Information
sharing and coordination among private-sector and government organizations
are essential for thoroughly understanding cyber threats and quickly
identifying and mitigating attacks. However, as we testified in July
2000,establishing the trusted relationships and information-sharing
protocols necessary to support such coordination can be difficult.
NIPC’s success in this area has been mixed. For example,
the InfraGard Program, which provides the FBI and the NIPC with a means
of securely sharing information with individual companies, was viewed
by the NIPC as an important element in building trust relationships
with the private sector. As of January 2001, the InfraGard program had
grown to about 500 member organizations, and, recently, NIPC officials
told us that InfraGard membership has continued to increase. However,
of the four information sharing and analysis centers that had been established
as focal points for infrastructure sectors, a two-way, information-sharing
partnership with the NIPC had developed with only one—the electric power
industry. The NIPC’s dealings with two of the other three centers primarily
consisted of providing information to the centers without receiving
any in return, and no procedures had been developed for more interactive
information sharing. The NIPC’s information-sharing relationship with
the fourth center was not covered by our review because the center was
not established until mid-January 2001, shortly before the close of
our work. However, according to NIPC and ISAC officials, the relationships
have improved since our report.
Similarly, the NIPC and the FBI made only limited
progress in developing a database of the most important components of
the nation’s critical infrastructures—an effort referred to as the Key
Asset Initiative. Although FBI field offices had identified over 5,000
key assets, at the time of our review, the entities that own or control
the assets generally had not been involved in identifying them. As a
result, the key assets recorded may not be the ones that infrastructure
owners consider the most important. Further, the Key Asset Initiative
was not being coordinated with other similar federal efforts at DOD
and the Department of Commerce.
In addition, the NIPC and other government entities had not
developed fully productive information-sharing and cooperative relationships.
For example, federal agencies have not routinely reported incident information
to the NIPC, at least in part because guidance provided by the federal
Chief Information Officers Council, which is chaired by the Office of
Management and Budget, directs agencies to report such information to
the General Services Administration’s Federal Computer Incident Response
Center. Further, NIPC and Defense officials agreed that their information-sharing
procedures needed improvement, noting that protocols for reciprocal
exchanges of information had not been established. In addition, the
expertise of the U.S. Secret Service regarding computer crime had not
been integrated into NIPC efforts. According to the NIPC director, the
relationship between the NIPC and other government entities has improved
since our review. In recent
testimony, officials from Federal Computer Incident Response Center
and the U.S. Secret Service discussed the collaborative and cooperative
relationships between their agencies and the NIPC.
The NIPC has been more successful in providing
training on investigating computer crime to government entities, which
is an effort that it considers an important component of its outreach
efforts. From 1998 through 2000, the NIPC trained about 300 individuals
from federal, state, local, and international entities other than the
FBI. In addition, the NIPC has advised several foreign governments that
are establishing centers similar to the NIPC.
To improve
information sharing, we recommended in our April report that the Assistant
to the President for National Security Affairs
·
direct federal agencies and encourage
the private sector to better define the types of information necessary
and appropriate to exchange in order to combat computer-based attacks
and to develop procedures for performing such exchanges,
·
initiate development of a strategy for
identifying assets of national significance that includes coordinating
efforts already underway, and
·
resolve discrepancies in requirements
regarding computer incident reporting by federal agencies.
We
also recommended that the Attorney General task the FBI Director to
·
formalize information-sharing relationships
between the NIPC and other federal entities and industry sectors and
·
ensure that the Key Asset Initiative
is integrated with other similar federal activities.
In commenting on a draft of this report, the Special
Assistant to the President and Senior Director for Legislative Affairs
at the National Security Council said that the administration will consider
our recommendations as it reviews federal cyber activities to determine
how the critical infrastructure protection function should be organized.
In conclusion,
efforts are underway to mitigate the risks of computer-based attacks
on federal information systems and on our national computer dependent
infrastructures. However, recent reports and events indicate that these
efforts are not keeping pace with the growing threats and that critical
operations and assets continue to be highly vulnerable to computer-based
attacks. The evaluation and reporting requirements of the new Government
Information Security Reform provisions should help provide a more complete
and accurate picture of federal security weaknesses and a means of measuring
progress. In addition, it is important that the government ensure that
our nation has the capability to deal with the growing threat of computer-based
attacks in order to mitigate the risk of serious disruptions and damage
to our critical infrastructures. The analysis, warning, response, and
information-sharing responsibilities that PDD 63 assigned to the NIPC
are important elements of this capability. However, developing the needed
capabilities will require overcoming many challenges. Meeting these
challenges will not be easy and will require clear central direction
and dedication of expertise and resources from multiple federal agencies,
as well as private sector support.
Mr. Chairman, this concludes my statement.
Information
Security: Code Red, Code Red II, and SirCam Attacks Highlight Need
for Proactive Measures (GAO-01-1073T, August 29, 2001).
Information Security: Opportunities for Improved OMB Oversight of Agency
Practices
(GAO/AIMD-96-110, September 24, 1996).
Information Security: Serious Weaknesses Place Critical Federal Operations
and Assets at Risk (GAO/AIMD-98-92, September 23, 1998); Information
Security: Serious and Widespread Weaknesses Persist at Federal Agencies
(GAO/AIMD-00-295, September 6, 2000).
High-Risk Series: Information Management and Technology
(GAO/HR-97-9, February 1, 1997); High-Risk
Series: An Update (GAO/HR-99-1, January 1999); High
Risk Series: An Update (GAO-01-263, January 2001).
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