Att Data Breach 2024 Social Security Number. At&t — the largest telco in the united states — said that the breached data included customers’ full name, email address, mailing address, date of birth, phone number and social security. About 73 million at&t customers, both past and present, may have had their personal information leaked onto the dark web, the company announced saturday.

At the end of march, at&t disclosed a massive data breach in which a data set of social security numbers, birth dates, at&t account numbers and passcodes, email. The at&t account breach appears to be from 2019 or earlier, the company said in a statement, and includes social security numbers and account information for.