AT&T

A massive dataset surfaced on a hacking forum containing personal information of approximately 73 million AT and T customers. While the company initially denied the breach when it was first reported in 2021, the full database became publicly available in March 2024. The data includes sensitive personal details such as Social Security Numbers and account information. Investigations suggest the data originated from 2019 or earlier, affecting both current and former account holders. The security incident led to a company wide reset of passcodes for millions of users to secure their accounts from unauthorized access.