galgil wrote:so 3g networks are safer or at least more challenging to eavesdrop e.t.c? as you see i have opened a thread about a way for someone to discover your mobile number through a sd memory card. But if you say that it can be done by a neighboor then maybe an sd card isn't even needed to sniff the mobile number in a specific range close to you.
I know this is kind of old but..
GSM networks do indeed operate under the A5/1 (some regions A5/2) encryption scheme. The fact that they are vulnerable though poses just a question as to what kind of expense one needs to go in order to decipher data.
3G networks are not secure either. They operate under the KASUMI system which was cracked a couple of years ago aswell.
All in all, mobile data transmission (be it voice,text or whatever) is NOT secure. So if you plan on having some kind of confidential conversation, nothing beats face to face. Or using a HAIPE device
"I hope for nothing. I fear nothing. I am free." ~ Nikos Kazantzakis