Payday lender Wonga has suffered a security breach which may mean criminals have stolen information from 245,000 of its UK customers.
Wonga says it is “urgently investigating illegal and unauthorised access to the personal data of some of its customers”.
The stolen information includes names, phone numbers, addresses, sort codes and bank account numbers.
This may also include the last four numbers on customers’ bank cards, used in the login process for some online accounts.
However, a Wonga statement says password details have not been stolen.
The lender says it contacted borrowers on Saturday and has set up a helpline for those affected.
The firm says it noticed the breach last week, but at the time thought it was a failed hacking attempt.
The Wonga statement says: “We are working closely with authorities and we are in the process of informing affected customers. We sincerely apologise for the inconvenience caused.”
Another 25,000 Polish customers might also have been hit.