T-Mobile Discloses Recent Security Breach Impacting 2M Customers, No Financial Data Compromised - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

T-Mobile Discloses Recent Security Breach Impacting 2M Customers, No Financial Data Compromised

by

T-Mobile and its subsidiary MetroPCS today disclosed a recent incident where hackers gained "unauthorized access to certain information" of its customers, which the companies have already reported to the police and shut down. The security breach occurred earlier this week on Monday, August 20, and affected two million customers (via Motherboard).

iphone x t mobile
T-Mobile promises that no financial data, credit card information, social security numbers, or passwords were compromised in the breach. However, "some of your personal information may have been exposed," the company states in the letter shared online, including one or more of the following: name, billing zip code, phone number, email address, account number, and account type (prepaid or postpaid).

A T-Mobile spokesperson says that the security breach affected "slightly less than" three percent of its 77 million customers, but did not reference a specific number. The incident reportedly happened "early in the morning" on August 20, and was perpetrated by hackers part of "an international group" that accessed T-Mobile servers through an API that "didn't contain any financial data or other very sensitive data."

The intrusion was discovered by T-Mobile's cybersecurity team the same day:

“We found it quickly and shut it down very fast,” the spokesperson said.

The spokesperson said she couldn’t give “specifics” of the attack and did not know whether the hackers were criminals or part of a government.

T-Mobile is reaching out to victims directly via text message to notify them, she said.

T-Mobile is now reaching out to notify all affected customers, and "if you don't receive a notification then that means your account was not among those impacted by this incident." The breach occurred less than a week after T-Mobile announced its new customer service initiative "Team of Experts."

Top Rated Comments

gsmornot Avatar
105 months ago
Here’s a great idea, stop centralizing databases.

Decentralize the customer information so they have direct access.

That wau when a hacker comes around, it’s not just one or two targets with MILLIONS of person info, instead they would need to target one person at a time
Not being a physical asset this would not apply. If you can see the records from a single machine it does not matter where they are stored. It would not make sense to have multiple systems for customer data, the agents alone would take a lot of time trying to find the user. So, option two is better management of access.
Score: 3 Votes (Like | Disagree)
Capeto Avatar
105 months ago
Yeah, I got a text message yesterday saying my info was compromised.

I hope whoever steals my identity enjoys the student loan debt!
Score: 2 Votes (Like | Disagree)
shareef777 Avatar
105 months ago
Here’s a great idea, stop centralizing databases.

Decentralize the customer information so they have direct access.

That wau when a hacker comes around, it’s not just one or two targets with MILLIONS of person info, instead they would need to target one person at a time
There's no solution that's hacker-proof. A script can be written to pull the data of one customer and re-run a million times automatically to pull the data of all the others.
Score: 2 Votes (Like | Disagree)
TheShadowKnows! Avatar
105 months ago
Beware that this is the perfect situation whereby you are the target of "spear phishing"

Here is how that would work:
[LIST=1]
* The news are out that T-Mobile servers have been compromised, and that a small fraction of subscribers will receive an email warning them that they may have been the target.
* You receive such email. The email appears to be authentic; but it is not and yet it appears crafted by T-Mobile Customer Service.
* It includes within the email body an embedded URL requesting you, the recipient, to click and login onto your T-Mobile account, and "change your password".
* The URL is fake, and points to hackers' backend servers.
* Unaware, you click and "login" with your login credentials.
* Presto, your credentials are now on the wild, and you have given the hackers a free pass to your T-Mobiel account, and posible financial information.

So beware.
Never click on embedded URLs within the body of emails.
Score: 1 Votes (Like | Disagree)
A MacBook lover Avatar
105 months ago
Here’s a great idea, stop centralizing databases.

Decentralize the customer information so they have direct access.

That wau when a hacker comes around, it’s not just one or two targets with MILLIONS of person info, instead they would need to target one person at a time
Score: 1 Votes (Like | Disagree)

Popular Stories

iPhone Handoff iOS 27 Feature

T-Mobile to Charge $5 a Month for iOS 27 iPhone Handoff

Thursday September 10, 2026 3:58 pm PDT by
T-Mobile will charge customers $5 per month to use iPhone Handoff, an e-SIM feature that allows the same phone number to be used on two separate iPhones. iPhone Handoff requires carrier support, and at launch, only T-Mobile users in the U.S. and Deutsche Telekom users in Germany will be able to use it. T-Mobile says customers can use their number across two compatible iPhone models and...
iOS 27 Next to iPhone

Here's When iOS 27 Rolls Out Today in Every Time Zone [Update: It's Out]

Sunday September 13, 2026 3:00 am PDT by
Update 10:04 a.m.: iOS 27 is rolling out now, though it may take a bit for all users to see it, so keep checking! Apple is about to release iOS 27, which will finally deliver more advanced Siri AI capabilities as well as a variety of other refinements, improvements, and new features to iPhones. It's Apple's biggest software update of the year, and Apple announced at Wednesday's iPhone event...
iOS 27 Icon iPhone

iOS 27 Available Now With These 8 New Features

Monday September 14, 2026 9:00 am PDT by
Update — 10 a.m. Pacific Time: Apple has released iOS 27. During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14. iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update. Below, we have highlighted eight new features and...