T-Mobile Data Breach: What Information Was Compromised and How to Protect Yourself

In the latest instance of cybercrime, T-Mobile has announced that a “bad actor” gained access to information of 37 million of its customers. The hack was disclosed in a regulatory filing with the Securities and Exchange Commission on January 19th, and apparently the hacker had access to the information for almost six weeks before they were detected.

The attack is particularly embarrassing for T-Mobile as it was the second such attack in two years. In August 2021, T-Mobile disclosed a cyberattack that obtained data on 7.8 million current customers and 40 million former or potential customers who had applied for credit with T-Mobile.