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T-Mobile Data Breach Lawsuit: $350M Settlement & New Claims

T-Mobile settled the 2021 data breach class action for $350 million -- at the time the largest data breach settlement in US history -- then suffered additional breaches in 2022 and 2023 that triggered new class action proceedings.

2021 Settlement

$350 million

2021 Breach

76 million customers

2023 Breach

~37 million more customers

Last Updated

June 2026

The 2021 Breach and Settlement

T-Mobile disclosed in August 2021 that hackers accessed personal data for 76 million US customers including SSNs, birth dates, addresses, and driver's license numbers. T-Mobile settled the resulting class action in 2022 for $350 million. The settlement also required $150 million in cybersecurity investments. The claim period has closed.

2022-2023 Breaches

Despite the required cybersecurity investment, T-Mobile suffered a breach in January 2023 affecting approximately 37 million customers, and additional incidents in 2022. New class actions allege T-Mobile failed to implement the required improvements and that the pattern of repeated breaches reflects systemic security failures.

Who Qualifies for Current Claims

Customers affected by the 2022 or 2023 T-Mobile breaches (not the 2021 breach) may have claims in new proceedings. Check whether you received a breach notification for any incident after the 2021 settlement. Related: Fanatics Lawsuit.

Status 2026

The 2021 settlement has been administered. Class actions for the 2022-2023 breaches are in active proceedings. No settlement on newer claims has been announced.

How to Get Legal Help

If you believe you qualify based on the eligibility criteria described above, the next step is a free consultation with an experienced attorney. Most plaintiff-side attorneys handling these cases work on contingency -- meaning you pay nothing unless your case results in a recovery. Bring any relevant documentation including receipts, correspondence, or evidence of the harm you experienced. Related: Ticketmaster Class Action Lawsuit.

To stay current on case developments, claim deadlines, and settlement news, bookmark this page and subscribe to LawsuitWatch alerts. Coverage is updated as new court filings, settlement announcements, and eligibility changes are made public. Related: Tyler Technologies Lawsuit.

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T-Mobile Data Breach Lawsuit: $350M Settlement & New Claims: Frequently Asked Questions

Answers to the most common questions about this case and your legal options.

Did T-Mobile settle the data breach lawsuit?

Yes. T-Mobile settled the 2021 breach class action for $350 million. The claim period has closed.

Is there a new T-Mobile lawsuit for 2023?

Yes. Class actions for the January 2023 breach are in active proceedings.

How much did T-Mobile customers receive?

Individual distribution amounts from the $350 million fund varied based on claims filed.

What should I do if T-Mobile breached my data?

Monitor credit, place fraud alerts, and evaluate participation in any pending class action for your specific breach.

Was I affected by the 2023 T-Mobile breach?

T-Mobile notified affected customers. Check your email (including spam) for notifications.