AT&T said it has begun notifying millions of customers about the theft of personal data recently discovered online.
The telecommunications giant said Saturday that a dataset found on the “dark web” contained information such as the Social Security numbers of about 7.6 million current AT&T account holders and 65.4 million former account holders.
The company said it has already reset current users’ passcodes and will communicate with account holders whose sensitive personal information has been compromised.
It’s unclear whether the data “comes from AT&T or one of its suppliers,” the company said in a statement. The compromised data is from 2019 or earlier and does not appear to include financial information or call history, it said. In addition to passcodes and social security numbers, it may include email and postal addresses, telephone numbers and dates of birth.
This is not the first crisis this year for the Dallas-based company.
New York prosecutors said they open an investigation in a wireless network outage in February that left thousands of AT&T customers across the United States without cell phone service for approximately 12 hours.
The outage, which also affected some Consumer Cellular, T-Mobile, UScellular and Verizon subscribers, caused widespread frustration among phone users and briefly disrupted 911 service in some communities.
AT&T apologized for the network disruption and offered a $5 credit to customers.
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