T-Mobile says hackers accessed some customer call records in data breach – TechCrunch

T Mobile, Third largest cell carrier in US after completion Recent $ 26 billion merger with Sprint, Ending 2020 by announcing its second data breach of the year.

SAIL veteran said Buried in a notice on their website It recently discovered unauthorized access to some customers’ account information, which T-Mobile builds and collects on its customers to provide cell service.

From the notice: “Our cyber security team recently discovered and closed malicious, unauthorized access to certain information related to your T-Mobile account. We immediately launched an investigation, with the help of prominent cyber security forensics experts, to determine what happened and what information was involved. We also immediately reported the matter to federal law enforcement and are now in the process of notifying affected customers. “

Known as Customer Owned Network Information (CPNI), this data may include call records – such as when the call was made, the caller’s phone number for how long, and the destination phone number for each call , And other information that can be found on the customer’s bill.

But the company said that the hackers did not use names, home or email addresses, financial data and account passwords (or PINs).

On noticing T-Mobile violations, the notice did not say that only now it was informing the affected customers.

A T-Mobile spokesperson did not respond to requests for comment, but said A news site The breach affects about 0.2% of all T-Mobile customers – or about 200,000 customers.

This is the latest security incident to hit the SAIL veteran in recent years.

In 2018, T-Mobile said As many as two million subscribers They may have had their personal information scattered. A year later, the company confirmed recorded access by hackers On another million prepaid customers. T-Mobile in just 2020 Accepted the breech Joe hackers on their email systems used some T-Mobile employee email accounts, exposing some customer data.