Metropolitan Police said search warrants executed at two addresses yesterday as part of the investigation turned up USD 131,000 in cash, luxury goods and a suspected live hand grenade. Detectives also seized a Range Rover and computers.
Cybercrime detectives launched the operation after being alerted that "a number" of bank customers had unknowingly downloaded malware by opening emails allegedly from their banks. Some 1 million pounds was siphoned from accounts, transferred to be laundered and then withdrawn as cash.
Police said the investigation was carried out with the assistance of several banks, but did not specify which ones.
The arrests are just the latest in a string of cyberthefts and suspected cyberthefts involving banks in the UK.
In September, four men were charged in the UK in connection with the theft of 1.3 million pounds from a Barclays Bank branch by installing a device on the bank's computer system which enabled the cybertheft.