The corporate stated it’s investigating with the assistance of inside and outdoors cybersecurity specialists, and has not decided but if the information got here from AT&T or considered one of its distributors.
“At present, AT&T doesn’t have proof of unauthorized entry to its programs leading to exfiltration of the information set,” the corporate stated in an announcement.
The information seems to be from 2019 or earlier, and accommodates info from 7.6 million present AT&T account holders and about 65.4 million former account holders, AT&T stated.
The corporate stated it was notifying prospects whose information was leaked and would pay for credit score monitoring when relevant.
Many high-profile firms have suffered information breaches, together with each of AT&T’s greatest rivals. Verizon has seen a number of stories of knowledge leaks over time, and T-Cellular has had at the least eight incidents since 2018, together with a 2021 occasion by which hackers stole the information of hundreds of thousands of shoppers. This 12 months, a hack at a third-party firm might have uncovered the account info of American Categorical cardholders.
AT&T was thrust right into a harsh highlight final month when a large cellphone outage affected greater than 1.7 million prospects and disrupted 911 companies in some states. The corporate stated it was prompted by a technical error, not a cyberattack.
