AT&T, the largest telco in the United States, has informed state authorities and regulators about a data breach which leaked customers’ full name, email address, mailing address, dates of birth, phone numbers and Social Security numbers online.
The company claims that the compromised customer data was from mid-2019 and earlier. Furthermore, it was stated that the documents included accurate information on over 7.9 million active customers.
AT&T estimated that over 65 million former customers were affected by the data leak, and it confirmed that the information belonged to both current and previous customers.
