Hackers crack open mobile network

Mobile calls and texts made on any GSM network can be eavesdropped upon using four cheap phones and open source software, say security researchers.

He said many of the pieces in the eavesdropping toolkit already existed thanks to work by other security researchers but there was one part the pair had to create themselves.

Mr Nohl said the motivation for carrying out the research was to create awareness around the problem and perhaps prompt operators to improve security.