Lauren Silva  |  August 18, 2021

Category: Data Breach

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T-Mobile data breach
(Photo Credit: Mihai_Andritoiu/Shutterstock)

T-Mobile Data Breach Overview:

  • Who: A hacker gained access to T-Mobile’s servers, potentially stealing data of 100 million T-Mobile customers.
  • Why: The customers’ personal information is now being sold on online forums.
  • Where: T-Mobile is headquartered in Washington, but the data breach may affect millions of customers across the United States.

Hackers have potentially nabbed the personal information of 100 million T-Mobile USA customers, which is reportedly being sold on online forums. 

The data breach includes customers’ names, Social Security numbers, addresses, dates of birth, phone numbers, and unique device identification numbers, according to Krebs on Security. The data, which does not include Sprint accounts, may even go as far back as the mid-1990s.

An ongoing investigation by T-Mobile confirmed the data breach, but not whether personal customer data was leaked or the scale of the breach. 

In a statement, T-Mobile noted that it was “confident that the entry point used to gain access has been closed.” 

However, Motherboard reports that it obtained intel from the person selling the stolen information online, who claims the hacker already “backed up [the customer data] in multiple places” before T-Mobile restricted access. 

A class action lawsuit has not yet been filed for this T-Mobile data breach. In 2015, T-Mobile and Experian North America Inc. faced a class action lawsuit by consumers who claimed their information was exposed in a data breach that potentially affected 15 million people.

If you were affected by this data breach, you may be able to join a future class action lawsuit

Who Caused The T-Mobile Data Breach?

The identity of the hacker has not yet been revealed or confirmed by T-Mobile or other authorities.

As Krebs on Security reports, the Twitter account @Und0xxed called attention to the breach on the social media platform. 

Although claiming to not be the hacker themselves, they have given credit to the Twitter user @IntelSecrets, who may also be known under the names IRDev and V0rtex. 

Top Class Actions will continue to monitor the T-Mobile data breach and report on any updates. 

Has your information been compromised in this T-Mobile data breach? Tell us about your experience in the comments below!


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115 thoughts onT-Mobile Investigates Data Breach Potentially Affecting 100 Million Customers

  1. Jeremy L Powell says:

    I have proof of the data breach from T-Mobile from Equifax.

  2. rodrika williams says:

    Please add me!

  3. Chanley Nair says:

    please add me

  4. Donal Bernadel says:

    Please add me

  5. Princess Anderson says:

    My data was compromised. I had a metro-pcs plan for several years. I switched to a different carrier June 2021. Got several emails in October 2021 alerting me several card applications had been completed. Took a month and a half to successfully file with the FTC.

  6. Silvana Medina says:

    My information down to my drivers license number was Exposed from the T-Mobile data breach in August 2021 I Purchased Experian premium and that’s how I find out on the alerts that I my information was compromised I get phone calls every day I had to freeze my credit report for one year someone called trying to purchase a car under my name they even know my medical information this is horrible I want my life back! I Try to block his numbers and they keep calling again with different numbers I get Robo calls silent calls your name lots of emails also why can we live a normal life.How can a big giant corporation like T-Mobile get hacked I don’t understand it makes me sick to my stomach they have all my information all of it I now I have to fix it I’m very upset.
    Please add me to this class action lawsuit thank you very much.

  7. Jahmod K White says:

    T-mobile stole my information, because I was not a customer. When I became a customer they still didn’t tell me. My turbo Tax ID notify told right after I filed my taxes. They are not only negligent. They know yet they won’t let their customers know. We have to find out from somewhere else. But by that time, it’s too late. My breach of my social security number happened last August. I didn’t get the notice til January this year.

  8. Kayla f says:

    I have received information from Verizon, credit karma, identity protection that my Social Security and Driver’s License have been found in dark web from t mobile breach 2021 and just found out this month

  9. Tamika says:

    Add me

  10. Lorri scanlon says:

    Please add me

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