NATIONWIDE – T-Mobile has agreed to pay $350 million to settle a class-action lawsuit stemming from a 2021 data breach that impacted an estimated 76.6 million U.S. residents.

• The Settlement – A $350 million fund was established to resolve claims related to a 2021 data breach where sensitive personal information was stolen by hackers.
• Who Is Eligible – Approximately 76.6 million U.S. residents identified by T-Mobile whose information was compromised in the breach.
• How to Claim – Eligible individuals must submit a valid claim form online or by mail by the deadline of January 23, 2026, to receive a cash payment or other benefits.

The settlement provides financial compensation and identity theft protection for those affected by the significant data security incident. Here is a factual breakdown of the lawsuit, who qualifies for a payment, and the steps required to file a claim.

What Caused the $350 Million Lawsuit?

The settlement resolves numerous class-action lawsuits filed against T-Mobile US, Inc. following a massive data breach disclosed by the company in August 2021. An investigation revealed that a hacker had exploited a vulnerability in T-Mobile’s systems to access customer data.

The compromised information included a wide range of sensitive personal details, such as full names, dates of birth, Social Security numbers, and driver’s license or ID information for millions of current, former, and prospective customers. While T-Mobile has not admitted to any wrongdoing as part of the settlement, the company agreed to the terms to resolve the litigation. In addition to the $350 million payout fund, T-Mobile also committed to spending at least $150 million on data security and related technology through 2023.

Who Can Claim a Piece of the Settlement?

The agreement defines a “Settlement Class” that includes approximately 76.6 million U.S. residents whose information was compromised in the data breach, as identified by T-Mobile’s investigation. Individuals who received a legal notice about the settlement by mail or email are likely part of this class.

Eligible class members have several compensation options:

• Cash Payment: A standard cash payment of $25 is available. For class members with a California mailing address, this amount is $100.
• Documented Losses: Individuals who spent time or money dealing with the effects of the breach can submit a claim for reimbursement of up to $25,000. This requires providing documentation of losses, such as credit monitoring costs, bank fees, or other expenses directly related to the identity theft.
• Identity Theft Protection: All class members are eligible to enroll in two years of free identity theft protection and credit monitoring services through TransUnion.

The final payment amount for the standard cash option may be adjusted up or down depending on the total number of valid claims filed.

How to File Your Claim Before the Deadline

The deadline to submit a claim for a cash payment or to activate the free identity protection is January 23, 2026. Claims must be submitted online or postmarked by this date.

To file a claim, individuals can follow these steps:

1. Visit the Official Settlement Website: The claim process is managed through a dedicated portal. The original site was located at TMobileDataSettlement.com.
2. Provide Your Information: Claimants will need to enter the unique ID and PIN provided on their settlement notice. If a notice was not received, individuals can still file a claim by providing their name, address, and other identifying information to verify their eligibility.
3. Choose a Payment Method: Claimants can select to receive their payment via a physical check or a digital payment service like PayPal or Venmo.
4. Submit the Claim: After filling out the required fields and making selections, the form must be submitted online or printed and mailed to the settlement administrator’s address, which is available on the official website.

Failure to file a valid claim by the January 23, 2026, deadline will result in forfeiture of any right to receive a payment or benefits from this settlement.