Anna Bradley-Smith  |  September 2, 2021

Category: Data Breach

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T-Mobile Data Breach
(Photo Credit: Jonathan Weiss/Shutterstock)

T-Mobile Class Action Lawsuit Overview:

  • Who: T-Mobile has been hit with two new lawsuits following its massive August data breach
  • What: The class action lawsuits, like a number that have already been filed, claim the company acted negligently with consumer data
  • Where: Both class actions are nationwide in the U.S.

T-Mobile has been hit with two new class action lawsuits alleging negligence in regards to August’s large-scale data breach, while the CEO maintains that the company is taking “significant steps to enhance our approach to cybersecurity.”

The two new nationwide class action lawsuits were brought by Sheila Hamilton-Bynum in Seattle and Ivette Delerme and Thomas Macnish in New Jersey. Both suits allege that T-Mobile failed to adequately protect consumers’ sensitive personal identifying information, and that the company’s lack of proper safeguards gave intruders a means to breach its computer network and steal sensitive personal identifying information in the August data breach.

That breach has potentially exposed the names, birth dates, Social Security numbers, driver’s license numbers, phone numbers, and two types of identification numbers associated with mobile phones–IMEI and IMSI numbers, of more than 100 million consumers. With their personal information jeopardized, consumers face an increased risk of identity theft, both claims state.

The new class actions join others previously filed by T-Mobile consumers that also allege negligence and call for damages for the consumers to mitigate the fallout of the breach.

Hamilton-Bynum says in her class action lawsuit that the data breach was a direct and proximate result of T-Mobile’s failure to implement and follow basic security procedures, and now the personal data of her and other consumers was “in the hands of criminals.”

“Plaintiff and members of the Class now face a substantially increased risk of identity theft, both currently and for the indefinite future, at least in part because their PII will now be offered and sold to identity thieves in an aggregated format, lending itself for ease of use in widespread phishing email schemes, identity theft and other harms caused by the disclosure of their PII,” the claim reads.

“Consequently, plaintiff and members of the Class have had to spend, and will continue to spend, significant time and money in the future to protect themselves due to T-Mobile’s actions.”

On Aug. 27, T-Mobile CEO Mike Sievert released a statement saying his team had been working “tirelessly to navigate a malicious cyberattack on our systems,” and with the breach now contained and the investigation substantially complete, he could confirm that former and current customers had their SSN, name, address, date of birth and driver’s license/ID information was compromised.

He said the company had entered into long-term partnerships with cybersecurity firm Mandiant, and with consulting firm KPMG LLP. “We know we need additional expertise to take our cybersecurity efforts to the next level — and we’ve brought in the help,” he wrote.

“These arrangements are part of a substantial multi-year investment to adopt best-in-class practices and transform our approach. This is all about assembling the firepower we need to improve our ability to fight back against criminals and building a future-forward strategy to protect T-Mobile and our customers.”

However, the action is too late for those consumers whose data has been illegally accessed, and whom T-Mobile must now have to face up to in court.

The recently filed class actions against T-Mobile, like the number filed before them, allege negligence and violations of state trade laws.

The consumers seek damages, restitution, injunctive relief, legal fees and costs, interest, and a jury trial.

Were you affected by the T-Mobile data breach? Let us know your experience in the comments section!

Hamilton-Bynum is represented by Stephen P. Connor, Anne-Marie E. Sargent, and Derik Campos of Connor & Sargent PLLC; Gary F. Lynch and Nicholas A. Colella of Carlson Lynch, LLP; Joseph P. Guglielmo of Scott+Scott Attorneys At Law; MaryBeth V. Gibson of The Finley Firm, P.C.; Arthur M. Murray of Murray Law Firm; and Brian C. Gudmudson of Zimmerman Reed LLP.

Delerme and Macnish are represented by James E. Cecchi of Carella, Byrne, Cecchi, Olstein, Brody & Agnello, P.C.; Linda P. Nussbaum of Nussbaum Law Group, P.C.; Michael E. Criden of Criden & Love, P.A.; and Adam Frankel of Greenwich Legal Associates, LLC.

The T-Mobile Data Breach Class Action Lawsuits are Hamilton-Bynum v. T-Mobile USA Inc., Case No. 2:21-cv-01190 in the U.S. District Court for the Western District of Washington Seattle Division, and Delerme, et al., v. T-Mobile USA Inc., Case No. 3:21-cv-16299 in the U.S. District Court District of New Jersey


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379 thoughts onT-Mobile Faces Two New Class Action Lawsuits After Data Breach Leaked User’s Social Security Numbers, Birth Dates, and Other Personal Data

  1. Shaun Krimmel says:

    I was also affected by the breach. Now I have to use 2 different I.D. Theft companies to monitor for me. I am very upset and frustrated as I got most of my information stolen, my Social Security number most importantly! Add me please

  2. Aida Medeiros says:

    Add me please I am A T-Mobile Customer

  3. Melinda Casey says:

    Add me. Have add Sprint since cell phones came out and NEVER had any problems tell T-Mobile took over.

    1. Quinette Rich-Bey says:

      Please add me to the Class Action suit. I have been a T-Mobile customer for 12yrs. Now never would have expected this to happen.

  4. Kim Ramseur says:

    I received a text from T-Mobile as well. As I’m now logging in to different accounts the message says “Chrome has found the password word you just used in a recent data breach” and when I log in to my T-Mobile account it says T-Mobile has determined unauthorized access of some of your personal information has occurred. Also message saying 59 of my passwords have been compromised. I’m livid!!

  5. Thomas Potter says:

    Received this text on August 20th:

    T-Mobile has determined that unauthorized access to some of your information, or others on your account, has occurred, like name, address, phone number and DOB. Importantly, we have NO information that indicates your SSN, personal financial or payment information, credit/debit card information, account numbers, or account passwords were accessed. We take the protection of our customers seriously. Learn more about practices that keep your account secure and general recommendations for protecting yourself: t-mo.co/Protect

  6. Christy Blaylock says:

    I need to be added to the list please my email and bank account did get hacked where $2700 was transfered out of my savings account to Meta Bank in South Dakota. It was all done by exteral transfer. Ive never had an issue with my bank accounts now after the TMobile breech i did i am a previous postpaid customer. Please contact me if you have any questions my number is 806-661-9712. I live in McLean Texas.

  7. Deshia Taylor says:

    Add me please I need to file the contacting me just to tell me that it had been breached but that’s all nothing has been presented to me on how to fix the situation or anything so yes please please please put me on the list

  8. Stephanie Kimball says:

    ADD ME . ILL BE WAITING TO FILE .

  9. Christopher Thompson says:

    Add me to the list

  10. Deran R MACK says:

    Add me

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