Abraham Jewett  |  January 24, 2023

Category: Data Breach

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Large T-Mobile signboard outside a building, representing the T-Mobile data breach.
(Photo Credit: Grand Warszawski/Shutterstock)

T-Mobile data breach overview: 

  • Who: T-Mobile disclosed it was the victim of a data breach that exposed the private data of approximately 37 million customers. 
  • Why: The T-Mobile data breach exposed private information such as names, email addresses and phone numbers, among other things. 
  • Where: Consumers nationwide may be affected by the T-Mobile data breach. 

T-Mobile revealed in a filing with the U.S. Securities and Exchange Commission this week that it was the victim of a data breach that exposed the private data of approximately 37 million customers to a bad actor. 

The wireless carrier says it discovered the breach Jan. 5, at which time it, along with outside cybersecurity experts, “promptly commenced” an investigation that allowed them to stop the “malicious activity” within a day. 

“Our investigation is still ongoing, but the malicious activity appears to be fully contained at this time, and there is currently no evidence that the bad actor was able to breach or compromise our systems or our network,” T-Mobile says in its filing. 

The company says it believes the T-Mobile data breach started on or around Nov. 25 of last year, according to the filing. 

T-Mobile says the breach did not expose any of its customers’ payment card information, Social Security numbers, drivers license numbers, government ID numbers, passwords/PINs or other financial account information. 

Data breach affected ‘limited set of customer account data,’ T-Mobile says 

T-Mobile says the incident affected a “limited set of customer account data,” including names, billing addresses, emails, phone numbers, birthdates and some account numbers and information. 

In addition to notifying certain federal agencies about the data breach, T-Mobile says it is working with law enforcement and has begun notifying potentially impacted customers “in accordance with applicable state and federal requirements.” 

The major wireless carrier says it has been working with “leading external cybersecurity experts” in order to “enhance” its “cybersecurity capabilities and transform our approach to cybersecurity.” 

“We have made substantial progress to date, and protecting our customers’ data remains a top priority,” T-Mobile says in its filing. 

T-Mobile says it believes the data breach may cause it to “incur significant expenses” and that, while it is “unable to predict the full impact,” it does not expect it to “have a material effect” on the company’s operations. 

Last September, the company agreed to pay $350 million as part of a class action settlement made to resolve claims revolving around a data breach announced in August 2021 that affected 76 million Americans. 

Have you been affected by the T-Mobile breach? Let us know in the comments. 


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177 thoughts onT-Mobile data breach exposes data of 37M customers

  1. Nomad says:

    My SSN is on the dark web because of T-Mobile. I discovered this after getting threats from hackers. They were monitoring all purchases and sending me screenshots within minutes of me making the purchase. I’m constantly blocking fraudulent attempts to open bank accounts and credit cards in my name. I can’t open a bank account for myself at any of the larger banks.

  2. Ashley Pewterbaugh says:

    I was a part of the data breach also, where is the option for us affected customers to submit a claim so we can be compensated for the bullshit this has brought into our lives! I have proof that now my info, including my ssn is on the dark web steming from this t-mobile breach! Not to mention my bill sky rocketed after this happened & there were fees & services changed that I didn’t authorize. Now my account is in collections cuz it went from a little over $200 to over $1000 in 1 billing cycle! Thats now on my credit report & it has lowered my credit score & negatively impacted my livelihood & ability to get proper credit cards, loans, a decent apartment, etc. & lastly, I’ve had hundreds of spam phone calls & thousands of emails sent to me that are meant to try to steal my info if I click into it, all occurring after this breach happened. HOW DO I SUBMIT A CLAIM FOR THIS ?! I do not understand why its not readily available to fill out like the other class action lawsuits I’ve seen.. if anyone knows of a way for me to do this please reply to my comment!

  3. Tranquilino Rodríguez says:

    I am apart of the data breech

  4. Hung Vuong says:

    Add me

  5. Lorena R. Dean says:

    JUNE 15,2023
    I WISH I NEVER HEAR OF T-MOBILE!!😡 When data breache got me, ONE MINUTE I HAD THESE PHONE NUMBER AND EMAIL ,when I found out my information got mix up with data breache ,I COULDN’T USE MY PHONE ANY BUSINESS I’M INVOLVED WITH I COULDN’T OPEN MY ACCOUNT BECAUSE THESE DATA BREACHE GOT MY PHONE LOCKED OUT…. Can a lawyer let me know when I would get paid I’m part of T-Mobile data settlement finally was up after January we had to wait 90 days, can somebody let me know when I will get paid

  6. Tina S. says:

    I’m getting pretty tired of trying to track down any sort of legit class action that actually can be processed for us folks that got screwed cuz of this whole debacle not once but more times than i care to admit. The problem here is they I keep getting the run around & never end up on Amy sort of list that results in any settlement to pay for the damages this crap caused many of us. What is the deal?! Cuz in order to be a customer of theirs j had to give them everything which was also stolen but it ain’t like the entire world don’t know where I live now thanks to them but why then do I keep having to track this down to get compensated when all they have to do is send a dam letter and id be done with it. The last thing we deserve is the run around to nowhere.

    1. Sabina perrrotti says:

      Me too as well I’ve been in store 6 times cause I noticed my phone something wasn’t right then acct were shut off for fraud now my name on dark web with all soc sec lic info stolen not one cent or punch of help and have documents proof and had to find out prior to this because my phone was taken over changed number still issues

  7. Sonya sullivan says:

    Add me please

    1. Felicia Espinosa says:

      Please add me to this lawsuit I was affected by both breaches

  8. Tamisha Coe says:

    Would someone plz include me am A T-Mobile customer and I have gaven my card to messenger on fb to T-mobile never have I ever had to do this and this will be my last time am so beyond mad with T-Mobile I would like to get this taken care of every time I called to speak to CEO OF T-mobile I get told we do not have a manger smh

    1. Karen Eichelberger says:

      I have had T mobile for over ten years include me in the class action suit.

  9. Francine says:

    I had T-Mobile and someone kept trying charge my card for over $2000 from apple and I didn’t have any apple devices good thing I keep my card locked add me plz

  10. Lorena Dean says:

    April 18 2023
    Who agreed with me when T-MOBILE SAYS THEY NEVER RAISE THERE PRICES AND WHEN THEY SAYS YOU CAN MAKE payments arrangements they don’t honor your payment

    1. Joleen Baker says:

      Agree with you 100% on that! They were constantly raising my service fees. I terminated services with them when I made a payment arrangement, made the first payment, and they turned my service of saying I canceled the arrangement! They then said I had to pay a $20 per line restoration fee. O e month they charhed me randomly a $167 restoration fee – I had 5 lines! I have been so done with their shady practices for a while! I don’t understand how they still have as many customers as they do. I’m wondering how many people they did the old bait and switch with…they would tell me a device was free (or X amount of dollars) with activation of a new number and then once I signed up for it would charge me! Once they told me a phone for my daughter was on sale for $180, then after I connected her line and signed the papers I would discover that I was financing the other $400! I would NEVER but a young child a $600 phone! They did that three times to me. I would even straight ask them “you’re not going to later tell me that I’m financing any dollar amount, right?” But they lied. They did many, many, MANY more deceitful, dirty, shady things to rip me off for my hard earned money! I’m ready to sue them for all the money they’ve ripped me off for. And the data breach? Icing on the cake! I was part of the 2021 data Breach and I STILL have people trying to use my social. I imagine I’m going to be dealing with this crap for many many years, but thank heavens for the piddly two year identity watch they offer – psh! Anybody else have issues with T-Mobile ripping them off? Let’s get together and file!

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