a standard developed by the European Telecommunications Standards Institute for the second generation of digital cellular networks, used by mobile phones. It is the default global standard for mobile communications.

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3answers
6k views

Smartphone / GSM Sniffer

This question would be in the category of SmartPhone Sniffers. So we have sniffers that can show the packets that are being sent across a wired or wireless (802.11) network. I am just performing a ...
32
votes
5answers
16k views

Are phone calls on a GSM network encrypted?

When I make a call on my cellphone (on a GSM network), is it encrypted?
8
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2answers
13k views

sniffing/recording GSM 3G signals

Is it possible to sniff or record and process GSM 3G signals (from some reciever) given that there is no other signals interrupting etc (the most comfortable conditions) Update (with some supporting ...
13
votes
2answers
39k views

How to spoof a cell phone tower (cell site, base station) — homemade IMSI-Catcher

An answer to a recent question has given me an idea for a school project (security CS program). Also, an active attacker (with a fake base station) can potentially force a mobile phone to use ...
11
votes
1answer
9k views

Mobile numbers capture and transmit data

will it be possible to build a low cost hardware/software device which can capture mobile numbers within a specified radius and then use that information to transmit an sms to those numbers? From what ...
3
votes
2answers
652 views

Airprobe and kraken related questions

I'm setting up test machine for my engineer work, to check GSM security and SMS interception. I already have an N210 and read a lot of documentation. There are some questions I have but can't find on ...
5
votes
3answers
4k views

Which is safer, GSM or CDMA?

I have read in the past (no sure where) that unfortunately there exist illegal devices that permit crooks to eavesdrop on GSM mobile phone conversations. I recently also heard that some people had ...