You just brightened my day. 

5. True. If eavesdropping is done correctly, you won’t notice any signs of it. If the eavesdroppers make mistakes, however, here are a few of the things you might observe:

If you suspect you are bugged, never let those suspicions show to whomever is doing the bugging. Do not deviate from the normal pattern of conversation in the room. A perpetrator who becomes aware you are suspicious may remove the device or switch it off. This will make it far more difficult to find the device. Advise your security officer promptly, but do not do it by phone. The bug may be in the telephone instrument. Do it in person, and discuss the problem in an area that you are confident is secure.

Never try to find a bug or wiretap yourself. What’s the point? If you are suspicious enough to look, you already know you should not have any sensitive conversation in that room. If there is a bug there, you will probably be unable to find it. Looking yourself and not finding a bug should certainly not give you any sense of confidence that you can speak freely in that room.

Related Topics: Bugs and Other Eavesdropping Devices, Detecting and Preventing Eavesdropping, Reporting "Anomalies".