Washington state sues T-Mobile over 2021 data breach security failures

Washington State has filed a lawsuit against T-Mobile over its 2021 data breach that exposed sensitive personal information (including Social Security numbers) of millions—alleging the company downplayed the severity, failed to timely notify affected consumers, and misrepresented its cybersecurity practices; the report also references a separate 2024 router compromise attributed to Chinese state-backed actor “Salt Typhoon.”