AT&T Data Hack Prompts FCC Probe, Raises Broad Security Concerns

AT&T Inc. said on Friday that hackers stole a cache of six months worth of mobile-phone customer data, disclosing for the first time a massive cybersecurity breach that threatens national security.

The breach at the telecommunications giant included calls and text information for nearly all of its cellular customers from May 1, 2022 to Oct. 31 of that year, and it included the numbers they were calling and a smaller subset of location data.

The trove represents a potential minefield of potential privacy and national security issues, for intelligence agents, police officers, stalking victims, journalists, therapists, an endless list of ...