AT&T Inc. Customer Data Security Breach Litigation
The causation theory presented by plaintiffs asserts that the exposure of personally identifiable information (PII)—including names, addresses, phone numbers, email addresses, account numbers, and call records—directly increased the risk of malicious use such as identity theft and fraud. The plaintiffs argue that this exposure was a substantial factor in causing injuries like financial losses, unauthorized account access, and privacy violations. Expert testimony supports the link between the breach and these injuries, emphasizing that the compromised data created a foreseeable risk of misuse.
139
Pending actions
140
Total actions filed
Active
Status
06/05/2024
Established
Filing deadline
December 18, 2025
Who qualifies
Plaintiffs must demonstrate that they were affected by the data breach, which involves exposure of personal identifiable information (PII) such as names, addresses, phone numbers, email addresses, account numbers, and call records. They need to provide evidence of injury, including identity theft, fraud, financial losses, or unauthorized account access. The injuries must be linked to the breach, with relevant losses occurring on or after April 14, 2024. Affected individuals had to file claims by December 18, 2025, to be eligible for settlement payouts.
Products involved
- Customer data and services of AT&T
Alleged injuries
- identity theft
- financial loss
- unauthorized account access
- privacy violation
- reputational damage
Bellwether trials
Bellwether trials are scheduled or under consideration, with a notable settlement approval hearing held on January 15, 2026. The case involves ongoing proceedings and potential payouts up to $7,500 per affected customer. The settlement deadline was December 18, 2025, and the case is in the final stages of resolution.
Settlement landscape
A settlement fund of approximately $177 million has been proposed and approved, with individual payouts potentially reaching up to $7,500 depending on the number of valid claims. The final approval hearing was held on January 15, 2026. The settlement process involved extensive claims filing, with over 4 million claims submitted by the deadline.
Lead counsel
- W. Mark Lanier (The Lanier Law Firm)
- Daniel Girard (Girard Gibbs LLP)
- Shauna Itri (Seeger Weiss LLP)
This page is generated from the official JPML pending-MDL report and public court records, refreshed monthly. It is provided for attorney reference and is not legal advice.
