A hacker is claiming to have knowledge associated to greater than 100 million T-Mobile clients within the U.S. and is promoting entry to a part of the knowledge for roughly $277,000.

Motherboard reported on Sunday that the hacker revealed that they had the info on an underground discussion board, though they didn’t specify the knowledge was associated to T-Mobile within the publish. When contacted by the outlet, the hacker stated in a web based chat that that they had compromised a number of T-Mobile servers and had “full customer info.” They declare the info embody social safety numbers, telephone numbers, names, bodily addresses, distinctive IMEI numbers, and driver license info.

Motherboard stated it had seen samples of the info and confirmed they contained correct info on T-Mobile clients.

On the underground discussion board, the hacker reportedly said they had been promoting a subset of knowledge with 30 million social safety numbers and driver licenses for six bitcoin, which whole $277,895 at the moment, in keeping with Coindesk. The hacker can be promoting entry to the remainder of the info privately.

T-Mobile seems to have acted towards the hacker, though that’s unconfirmed at the moment.

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“I think they already found out because we lost access to the backdoored servers,” the hacker informed Motherboard.

Nonetheless, the hacker stated they wouldn’t be affected by T-Mobile’s actions as a result of that they had already downloaded and backed up the stolen knowledge in a number of locations.

Gizmodo reached out to T-Mobile for touch upon Sunday however didn’t obtain a response by the point of publication. The firm informed Motherboard it was investigating the claims.

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

If confirmed, the breach would deal one other cybersecurity blow to the corporate, which has been hit by a number of assaults that resulted in knowledge breaches in current years. This previous February, T-Mobile stated it had been the hacked after an undisclosed variety of clients suffered SIM swap attacks. Meanwhile, in December 2020, the corporate revealed it had suffered a data breach that uncovered its customers’ proprietary network information.