Keypoints
- The data leak originates from a 2021 AT&T breach linked to the threat actor ShinyHunters.
- The leaked information includes personally identifiable data such as SSNs, birth dates, and contact details.
- The data was repackaged and re-released in 2024, after being initially offered for sale in 2021.
- Over 86 million unique customer records are affected by the leak, including multiple records per customer.
- This incident highlights the ongoing risks of data leaks from past breaches being exploited years later.