At&T Security Breach 2025. Learn about data breaches, cyber attacks, and security incidents involving at&t. The telecommunications giant said saturday that a dataset found on the โdark webโ contains information such as social security numbers for about 7.6 million.
Personal data has been found on the dark web belonging to about 7.6 million at&t customers as well as 65.4 million former ones. At&t said the breach on saturday affected about 7.6 million current and 65.4 million former at&t customers.