Telecommunication giant T-Mobile is being sued for allegedly failing to fix longstanding cybersecurity issues that led to a massive data breach involving the personal data of millions of Americans.

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

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