T-Mobile has disclosed that the company suffered a second data breach this year in late February 2023, where attackers gained access to the personal information of hundreds of customers. The company stated that the breach was limited to only 836 individuals and that no personal financial account information and call records were not affected by the security breach.

The data breach notification letter sent to impacted customers, as shared by BleepingComputer, states, 'The information obtained for each customer varied, but may have included full name, contact information, account number and associated phone numbers, T-Mobile account PIN, social security number, government ID, date of birth, balance due, internal codes that T-Mobile uses to service customer accounts (for example, rate plan and feature codes), and the number of lines.'

However, since this compromised personally identifiable information can expose customers to identity theft, T-Mobile is offering the affected customers two years of free credit monitoring and identity theft detection services provided by myTrueIdentity, from Transunion.

T-Mobile has been plagued by several data breaches in the last few years. These include: