Security News > 2022 > April > T-Mobile Admits Lapsus$ Hackers Gained Access to its Internal Tools and Source Code

Telecom company T-Mobile on Friday confirmed that it was the victim of a security breach in March after the LAPSUS$ mercenary gang managed to gain access to its networks.

"T-Mobile, in a statement, said that the incident occurred"several weeks ago, with the "Bad actor" using stolen credentials to access internal systems.

"The systems accessed contained no customer or government information or other similarly sensitive information, and we have no evidence that the intruder was able to obtain anything of value," it added.

The VPN credentials for initial access are said to have been obtained from illicit websites like Russian Market with the goal of gaining control of T-Mobile employee accounts, ultimately allowing the threat actor to carry out SIM swapping attacks at will.

Besides gaining access to an internal customer account management tool called Atlas, the chats show that LAPSUS$ had breached T-Mobile's Slack and Bitbucket accounts, using the latter to download over 30,000 source code repositories.

LAPSUS$, in a short time since emerging on the threat landscape, have gained notoriety for its breaches of Impresa, NVIDIA, Samsung, Vodafone, Ubisoft, Microsoft, Okta, and Globant.

News URL

https://thehackernews.com/2022/04/t-mobile-admits-lapsus-hackers-gained.html