Hackers have stolen personal information belonging to about 15 million T-Mobile wireless customers and potential customers in the U.S.
The stolen material includes Social Security numbers, home addresses, birthdates and other personal information.
In the latest high-profile breach, the hackers got the information from credit reporting agency Experian, which T-Mobile uses to check the credit of consumers applying for phone plans and financing for devices. Experian said T-Mobile customers who applied between Sept. 1, 2013 and Sept. 16, 2015 may have had their information stolen.
Experian said it immediately notified law enforcement authorities after discovering the hack and that "there is no evidence to date that the data has been used inappropriately."
T-Mobile customers can sign up for two free years of credit monitoring services.