The US security company claimed some 1.2 billion passwords had been hacked by the Russian gang. Photograph: Kacper Pempel/Reuters

A gang of hackers in Russia has amassed 1.2 billion sets of looted user names and passwords, believed to be the largest known cache of stolen persona(...)

A hacker secretly took over a computer server at the BBC and then launched a Christmas Day campaign to convince other cyber criminals to pay him for a(...)