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What we know about the AT&T data breach affecting millions of current and former customers

A woman walks past signage for AT&T in Washington, D.C., on Feb. 22, 2024. AT&T reported that personal data from millions of current and former account holders has leaked onto the dark web. (Mandel Ngan/AFP/Getty Images/TNS)
A woman walks past signage for AT&T in Washington, D.C., on Feb. 22, 2024. AT&T reported that personal data from millions of current and former account holders has leaked onto the dark web. (Mandel Ngan/AFP/Getty Images/TNS) A woman walks past signage for AT&T in Washington, D.C., on Feb. 22, 2024. AT&T reported that personal data from millions of current and former account holders has leaked onto the dark web. (Mandel Ngan/AFP/Getty Images/TNS)

By Cindy Deifenderfer 3 min read

AT&T reported Saturday that personal data from millions of current and former account holders has leaked onto the dark web.

The Dallas-based company said the data — which it said appears to be from 2019 or earlier — was released on the dark web about two weeks ago, and that officials had not yet determined where it originated from.

Here’s what we know:

How many people were affected?

Officials with the telecommunications giant said a preliminary analysis found the data set includes information from about 7.6 million current account holders and 65.4 million former ones, totaling about 73 million people.