Cell Tower Jammer Created From Cheap Phone Using Open Source Firmware

bryanandaimee writes: A few years ago the baseband code for the Vitelcom TSM30 was leaked to the public. From that leaked code others have written open source GSM firmware firmware for the baseband processor. Using that code researchers in Berlin have created firmware to intercept the cell tower to cell phone handshake and block calls and text messages from getting through. A single hacked cell phone can bring down a cell.