[Jason Gin] wanted to reuse the SIM card that came with a ZTE WF721 wireless terminal he got from AT&T, but as he expected, it was locked to the device. Unfortunately, the terminal has no function ...

But Brits say they've discovered a hidden hack to bag a whopping three months of unlimited mobile data - for only a fiver.

GCHQ and the US National Security Agency hacked into the internal network of the largest makers of mobile phone SIM cards in the world in order to steal encryption keys and compromise the security ...