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. Jeffrey Doan says:

    pease add me to the t-mobile class action lawsuit

  2. Donna Harden says:

    I used T mobile from 2001 until 2020 I been hacked and have had several calls from foreign u known countries that had some or all of my personal I formation without my consent . It’s frustrating and absurd.

  3. Silvana Medina says:

    Please add me I’m not currently a T-Mobile customer back in August during the data breach my information was exposed even my license number I have frozen my credit files for one year because I’m afraid I can get hacked!! But if you read about the class action lawsuit it said that it goes back all the way to 1990!! And I did back then had a T-Mobile account you figure that out I would like to get compensated for all the trouble that I’m going through right now thank you.

  4. Sabir Newton says:

    Please add me to the lawsuit

  5. Maureen Boothby says:

    I have been a tmobile customer for years and was notified by tmobile that there was a breech which I suspected because some things were not as they should have been on my phone. The on site rep told me not to be too concerned ! Please include me in this.

  6. Nancy Capwell says:

    I have been a tmobile customer for 23 years So would like to be added

  7. Brittney Weemes says:

    I am a victim of the data breach please add me to this settlement

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