https://arstechnica.com/information-technology/2023/05/t-mobile-discloses-2nd-data-breach-of-2023-this-one-leaking-account-pins-and-more/

T-Mobile on Monday said it experienced a hack that exposed account PINs and other customer data in the company's second network intrusion this year and the ninth since 2018.

The intrusion, which started on February 24 and lasted until March 30, affected 836 customers, according to a notification on the website of Maine Attorney General Aaron Frey.