
AT&T has acknowledged a data leak impacted 73 million of its current and former customers. News of the data leak was made public in March of this year, after a hacker using the alias ShinyHunters posted an archive of the stolen data to BreachForums, a notorious data leaks site.
AT&T said it is unclear whether the data, which appears to be from 2019 at the latest, originated from AT&T or one of its vendors. It has also not yet been made public how the data was accessed.