Tesco probes attempted fraud at bank
Tesco Bank has been forced to block some customers' cards after "suspicious activity" was detected by its fraud prevention system.
Thousands of accounts were reportedly affected after apparent fraudsters targeted customers, with many taking to social media to alert the bank.
One man tweeted his balance had dropped by £700 without him making a transaction, while another said the disruption had left her "unable to feed my kids in school tomorrow". Others complained about a lack of communication and hours spent on hold.
Tesco Bank said it wanted to do "everything we can to protect our customers from fraud" and urged those who feared their accounts had been hacked to contact them immediately.
The bank said its "fraud prevention systems identified suspicious activity on a number of accounts". It added: "As a precautionary measure we have blocked some customer cards and have contacted affected customers via text message to notify them."