Failed IT systems at Capita fuel fears of cyber-attack on crucial NHS provider

Staff at outsourcing firm resort to radios, pen and paper as they are unable to access computers and email

Computer systems have abruptly stopped working at the outsourcing group Capita, triggering fears that the company that runs crucial operations for the NHS and the military could be under cyber-attack.

Staff are understood to have been unable to access IT systems since Friday morning, and an early investigation has yet to establish the cause.