Hacker intercepts GSM-based conversations with $1,500 equipment

Posted on Monday, August 02 2010 @ 20:17 CEST by Thomas De Maesschalck
Security researcher Chris Paget revealed the insecurity of 2G GSM calls by demonstrating how you can intercept these calls with just $1,500 worth of equipment, with the most expensive item being a laptop. His system works by creating a cell phone base station that tricks cell phones into routing their outbound calls through his device, encryption is irrelevant as the rogue tower can simply turn it off.
The low-cost, home-brewed device, developed by researcher Chris Paget, mimics more expensive devices already used by intelligence and law enforcement agencies – called IMSI catchers – that can capture phone ID data and content. The devices essentially spoof a legitimate GSM tower and entice cell phones to send them data by emitting a signal that’s stronger than legitimate towers in the area.

“If you have the ability to deliver a reasonably strong signal, then those around are owned,” Paget said.

Paget’s system costs only about $1,500, as opposed to several hundreds of thousands for professional products. Most of the price is for the laptop he used to operate the system.
Full details at Wired.


About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.



Loading Comments