Dallas-based AT&T suffered a potential security breach involving the data of about 1,600 accounts.
Reuters is reporting the company says a rogue employee accessed the personal information, which potentially involves social security numbers and driver’s license numbers.
AT&T says it has notified federal authorities. Tom's Guide reports the theft occurred in August, and the involved employee has been fired.
The company says it will reverse any improper charges and is also offering free credit monitoring to involved accounts.
According to Techspot, the data could also include the types of services the customer purchased through AT&T’s network.
The Associated Press reports: "The August data breach is among the latest disclosed by a major company. Unlike others, though, this one affected a small number of people and resulted from unauthorized access by an insider rather than hacking."
Additional details are posted on the website of Vermont’s attorney general.