T-Mobile discloses data breach after SIM swapping attacks

Sergiu Gatlan reports:

American telecommunications provider T-Mobile has disclosed a data breach after an unknown number of customers were apparently affected by SIM swap attacks.


In a data breach notice sent to impacted customers on February 9, 2021, and filed with US attorney generals’ offices, T-Mobile revealed that an unknown attacker gained access to customers’ account information, including personal info and personal identification numbers (PINs).

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