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. Terra Lambright says:

    Please add me

  2. Saundra Waycaster says:

    I had someone contact me that said they were from T-Mobile and that I needed to call this police station because they were going to come and get me if I did not pay them. I called the number and talked to one lady and told her that the charges they were trying to charge me were not legitimate. She said that according to T-Mobile they were and if I did not pay it they would be to visit me. I told her I was not going to pay it and she hung up. About a week later, a man called saying he was from that Police department and basically told me the same thing. I told him the same thing the charge was not legitimate and I would not be paying it. He said that he would be issuing a warrant for my arrest unless I paid it right now over the phone. I told him I was not going to do that. So he said to be prepared for someone to be coming to pick me up. I got online to check my credit report and a charge for this amount was on my credit report. I talked to someone at my local T-Mobile store and she said that there was a data breach at T-Mobile and it sounded like my information had been stolen because she believed that was a scam because she’s never heard of T-Mobile doing anything like that.

  3. Darlene Martin says:

    Info in dark web, had to put alerts in all 3 credit bureaus. Please add me

  4. Lori Kaiser says:

    Emails and accounts hacked. New accounts opened and so much spam and solicitations.

  5. Ashley Betts says:

    Add me! Just received a letter from a scammer pretending to be t mobile stating I was pre approved and I already have t mobile.

  6. YOLANDA RICO says:

    Add me

  7. CHRISTI ROBBINS says:

    Help!! I just found out that I was part of this dark web with Tmobile? What are we supposed to do now???

  8. Tracy Holden says:

    I just found out from my turbo tax idnotifier that aug 2017 exposed my social, since then several notifications regarding my email and phone on the dark web. How do I get in on this settlement son I can fund a service to fix all this for me

  9. Karen Cardoso says:

    I tried to submit my taxes and was unable too because my social and ID were sold to a dark web user. Now I am paying Experian to monitor and my stuff and I have to call the irs to verify my identity

  10. Chanley Nair says:

    i have also been affected. how do file a claim?

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