what are the Security Impact of mobile telephonyon in uk?

Answer 1

Yet more opportunities for Big Brother to be watching us. Ugh! Whenever we make a mobile phone call, the phone co has near-precise data about where we are, and they are totally happy to turn this info over to the police when the police ask for it, without our consent.

Mobile phones are relatively vulnerable to being stolen and the simcard re-used elsewhere by the thief. Thieves can mug you to steal the phone. People also leave phones carelessly on trains and in cafes etc.