The Washington state attorney general is suing T-Mobile over a 2021 data breach that exposed the data of 79 million people. The lawsuit alleges T-Mobile knew of the vulnerabilities and didn't act on them, and then didn't do enough to warn customers.

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