The state attorney general says about 21,000 New Hampshire residents who are T-Mobile wireless customers may have had personal data exposed in the recent breach at the Experian credit reporting agency.
According to the attorney general's office, data was used by T-Mobile in credit checks of applicants for its services from Sept. 1, 2013 through Sept. 16, 2015.
It included names, addresses, birth dates, Social Security numbers and other identification.
The office recommends that people monitor their credit report, consider placing a security freeze on it, and watch for unexplained credit activity.
Consumers with consumer-related complaints or concerns can call the Attorney General's Consumer Information Line at 1-888-468-4454 or file a complaint online.