T-Mobile Investigates Customer Data Breach

T-Mobile is investigating a forum post claiming to be selling a mountain of personal data. The forum post itself doesn't mention T-Mobile, but the seller told Vice they have obtained data related to over 100 million people, and that the data came from T-Mobile servers. On the underground forum the seller is asking for 6 bitcoin, around $270,000, for a subset of the data containing 30 million social security numbers and drivers licenses. The seller said they are privately selling the rest of the data at the moment. "I think they already found out because we lost access to the backdoored servers," the seller said, referring to T-Mobile's potential response to the breach. They stated that although T-Mobile has since kicked them out of the hacked servers, the seller had already downloaded the data locally. T-Mobile confirmed that "unauthorized access to some T-Mobile data occurred," and also said to Vice that they "are aware of claims made in an underground forum and have been actively investigating their validity." The company has since declined to answer follow-up questions about the scale of the breach.