AT&T suffered a vast cyber security breach earlier this year, with hackers accessing the call and text message information of 110mn of the US telecoms company’s customers.
Over 11 days in April, “threat actors” accessed and copied records of customer calls and texts from a period of several months in 2022 as well as on January 2 2023, AT&T said in a regulatory filing on Friday.
The compromised data included files related to “nearly all” of its cellular customers, customers of mobile virtual network operators using its wireless network, and landline customers who interacted with those cellular numbers between May and October 2022. AT&T said the breach from January 2 affected “a very small number of customers”.
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