Cellular Phone Security Measures
Turn your cellular telephone on only when you need to place a call. Turn it off after placing the call. Do not give your cellular phone number to anyone and don't use your cell phone for receiving calls, as that requires leaving it on all the time. Ask your friends and associates to page you if they need to talk with you. You can then return the page by using your cellular telephone. Do not discuss sensitive information on a cellular phone. When you call someone from your cell phone, consider advising them you are calling from a cell phone that is vulnerable to monitoring, and that you will be speaking generally and not get into sensitive matters. Do not leave your cellular telephone unattended. If your cell phone is vehicle-mounted, turn it off before permitting valet parking attendants to park the car, even if the telephone automatically locks when the car's ignition is turned off. Avoid using your cellular telephone within several miles of the airport, stadium, mall, or other heavy traffic locations. These are areas where radio hobbyists use scanners for random monitoring. If they come across an interesting conversation, your number may be marked for regular selective monitoring. If your cellular service company offers personal identification numbers (PIN), consider using one. Although cellular PIN services are cumbersome and require that you input your PIN for every call, they are an effective means of thwarting cloning. Source :http://www.hq.nasa.gov/office/ospp/securityguide/V2comint/Cellular.htm | ||||||||
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