MPs will be told of a massive data breach involving the Ministry of Defence later today, targeting service personnel.

The Chinese state has hacked the Ministry of Defence, Sky News understands.

MPs will be told today of a massive data breach involving the MoD, targeting service personnel.

The government will not name the country involved, but Sky News understands this to be China.

The Chinese state is to be accused of two or three attempts at hacking MoD employees - including personnel.

The cyberattack was on a payroll system with current service personnel and some veterans. It is largely names and bank details that have been exposed.