Washington state's attorney general says the company had years to fix vulnerabilities. T-Mobile says it's "fundamentally transformed" its approach to cybersecurity.

News The data breach saw the personal details of 79 million T-Mobile customers compromised, including millions in Washington state. By: Harry Baldock, Total Telecom The U.S. state of Washington is suing T-Mobile over a massive data breach that affected millions of the state’s residents.

T-Mobile is once again being sued by Washington state over the 2021 data breach which exposed sensitive information for over 79 million people, The Verge reports. The lawsuit filed on Monday alleges that T-Mobile had been aware of various security loopholes in its systems for years but didn’t take any action.

According to Washington's Attorney General, T-Mobile knew its security practices were inadequate even before the 2021 security breach.

T-Mobile has been sued a second time over a 2021 data breach that impacted 80 million T-Mobile users. The consumer protection lawsuit comes