On August 16, it was revealed on an underground forum that someone had gotten data on 47.8 million T-Mobile users, including their Social Security numbers and other sensitive information, from T-Mobile servers.

This is the fourth time company’s data has been leaked since early 2020, now hackers got sensitive information from about 47.8 million people which includes 7.8 million current T-Mobile postpaid customer accounts’ information appears to be contained in the stolen files, as well as just over 40 million records of former or prospective customers who had previously applied for credit with T-Mobile.

On Monday, the company has been told about what hackers got from their servers, including customers’ first and last names, date of birth, SSN, and driver’s license/ID information for a subset of current and former postpay customers and prospective T-Mobile customers.

Here’s the official statement from the company, “At this time, we have also been able to confirm approximately 850,000 active T-Mobile prepaid customer names, phone numbers, and account PINs were also exposed. We have already proactively reset ALL of the PINs on these accounts to help protect these customers, and we will be notified accordingly right away. No Metro by T-Mobile, former Sprint prepaid, or Boost customers had their names or PINs exposed.”

“We have also confirmed that there was some additional information from inactive prepaid accounts accessed through prepaid billing files. No customer financial information, credit card information, debit or other payment information or SSN was in this inactive file.”

For those people who are affected by the data breach, T-Mobile notifies them and offers a two-year McAfee’s ID Theft Protection Service for free.