
PALM BEACH, FL – A massive trove of nearly 90 million AT&T customer records, including Social Security numbers and other sensitive information, has resurfaced for sale on the dark web, reigniting concerns over personal data security.
The data were first posted to a Russian-language cybercrime forum on May 15 and reappeared on June 3, with cybersecurity researchers confirming these are decrypted records – mostly repackaged from previous breaches.
AT&T indicates the data was originally stolen in earlier incidents, including 2021 and March 2024 breaches that impacted current and former customers. In response, the company reiterated that customers affected by those incidents had been alerted and offered credit monitoring services.
However, the expanded data cache – now totaling around 88 million unique records, including 44 million plaintext Social Security numbers, names, dates of birth, addresses, and contact details – heightens the risk of identity theft and fraud.
Experts warn that such detailed personal data enable cybercriminals to execute phishing scams, create false accounts, and orchestrate financial fraud. AT&T has confirmed it alerted law enforcement and initiated an investigation.
Customers are being urged to verify whether their data were compromised through specialized cybersecurity portals offering breach queries. They are also advised to monitor credit reports, enable multi-factor authentication, and consider placing a freeze on credit lines.
Whether viewed as a new breach or a dangerous reissue of previously leaked data, this development is a stark reminder of the persistent vulnerabilities in legacy data and the alarming consequences of aggregated personal information becoming widely available to cybercriminals.

About The Author: John Colascione is Chief Executive Officer of Internet Marketing Services Inc. He specializes in Website Monetization, is a Google AdWords Certified Professional, authored a ‘how to’ book called ”Mastering Your Website‘, and is a key player in several Internet related businesses through his search engine strategy brand Searchen Networks®
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