T-Mobile investigating report of customer data breach that reportedly involves 100 million people

T-Mobile confirmed Sunday that it’s looking into an online forum post that claims to be selling a large trove of its customers’ sensitive data. Motherboard reported that it was in contact with the seller of the data, who said they had taken data from T-Mobile’s servers that included Social Security numbers, names, addresses, and driver license information related to more than 100 million people. After reviewing samples of the data, Motherboard reported it appeared authentic.

“We are aware of claims made in an underground forum and have been actively investigating their validity,” a T-Mobile spokesperson said in an email to The Verge. “We do not have any additional information to share at this time.”

It’s not clear when the data may have...

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