Infamous hacker group claims to be selling data from over 70 million AT&T customers, according to a privacy group

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A hacker group claims to have stolen data from 70 million AT&T customers, according to RestorePrivacy.
The group is trying to sell the data for $1 million on the dark web.
AT&T has denied the hack, saying the information is not from its systems.
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A known threat actor on the dark web with a history of cyber attacks is reportedly selling private data that was allegedly collected from AT&T users. The group is attempting