PCMag editors select and review products independently. If you buy through affiliate links, we may earn commissions, which help support our testing.

T-Mobile Agrees to $350 Million Settlement Over 2021 Data Breach

The money will go toward former and current T-Mobile subscribers who suffered financial losses from the breach, which involved a hacker selling the stolen data online.

 & Michael Kan Principal Reporter

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology.

Our Expert
LOOK INSIDE PC LABS HOW WE TEST
65 EXPERTS
43 YEARS
41,500+ REVIEWS

T-Mobile has agreed to pay $350 million to settle a class-action lawsuit focused on a 2021 data breach at the carrier that exposed information on more than 76 million people. 

T-Mobile announced the news in an SEC filing and in court documents, making it the second largest data breach settlement behind Equifax’s agreement to pay $650 million. 

In T-Mobile’s case, the $350 million will go to victims ensnared in the breach and cover legal fees. In addition, T-Mobile plans on spending another $150 million over the next two years to bolster its data security. 

Last year’s breach at the mobile carrier was particularly bad since it exposed Social Security numbers, addresses, dates of births, and driver’s license ID information for some former and current T-Mobile subscribers. 

The data was exposed in a cyberattack involving a hacker, who stole 106GB of data that also included information on prospective T-Mobile customers. The hacker then sold the information to other cybercriminals on internet forums. 

“During the weeks and months following the data breach, plaintiffs allege that they and other class members suffered actual and attempted identity theft and fraud, including unauthorized credit applications filed in their names,” the proposed settlement says. This included hackers using the stolen information to break into victims’ banking and online accounts. 

“Similarly, numerous plaintiffs and other class members have been notified by third-party monitoring companies that their PII (personal identifying information) was located on the dark web as a result of the data breach,” the settlement adds. As a result, the data breach sparked dozens of victims to file lawsuits against the carrier, demanding it pay damages.  

T-Mobile is now proposing up to $25,000 in reimbursement to any victims who suffered “out-of-pocket losses” resulting from the data breach. This also includes compensating victims for loss of time responding to the breach, if evidence is provided.

“Settlement Class Members can claim $25 per hour, or their current hourly rate if higher and supported by documentation,” the court documents say. However, the settlement will only pay the $25 rate for “up to five hours of time spent responding to the data breach or up to fifteen hours of time spent addressing related out-of-pocket losses.”

Victims who didn’t experience any losses can receive a $25 cash payment or a two-year subscription to an identity monitoring service. Residents living in California can receive a higher cash payment of $100. 

T-Mobile expects the US district court to approve the settlement "as early as December," although it’s possible the deal could be delayed if an appeal is filed. 

One potential issue is whether the settlement offers enough money to compensate victims. But the court documents note: “After vigorous and hard-fought negotiations occurring over two full days on June 7 and 8, 2022, the parties reached an agreement in principle and executed a binding term sheet.”

The settlement will also exclude any victims who filed their own arbitration demand or petition against T-Mobile regarding the data breach. Once the settlement receives court approval, T-Mobile will then begin the process of notifying victims about filing a claim to receive compensation.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

Read full bio