Citigroup has announced that at least one percent of its United States credit card accounts were breached last month, and the personal details of customers stolen.
The exact number of breached credit accounts is 360,083, with over 200,000 being issued fresh credit cards due to the breach.
A bank statement says that the remaining accounts that have been affected were not reissued cards because they were either closed or had already gotten new details. They stressed that the affected accounts would be monitored closely.
Citigroup claims they have put enhanced security measures in place to avoid future recurrences.
Experts think that the rise in security breaches is due to larger companies spending too much time and effort worrying about regulations rather than protection.