A gang has been arrested on suspicion of hijacking the computer system in a Barclays bank to siphon off £1.3million.
Scotland Yard said today it had held eight men after a cyber-attack on a branch in Swiss Cottage, north London.
The group is accused of sending in a bogus engineer who installed a hacking device on at least one computer that allowed screens to be viewed remotely.
It is a carbon copy of an alleged plot to steal from a Santander branch in south-east London foiled a week ago, but the Met would not confirm if the two incidents are linked.
The latest gang are accused of using highly sensitive information displayed on the computer to access accounts and drain money from them in April.