• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Jobs
  • Career
    • Cyber Security Training
    • Work from Home
    • Cyber Security Analyst
    • Remote Work – Six Ways to Keep Your Data Safe When Working Remotely
  • Field Guide
  • Newsletter Signup
  • Deals
  • News
AskCyberSecurity.com

AskCyberSecurity.com

Cyber Security News & Information

  • Home
  • Data Privacy
    • Gamers
    • Government Cyber Security
      • Legislation
      • Standards
        • What are the risks of computer security?
        • Medical Cyber Security
    • Social Media
  • Security
    • Data Breaches
    • Scams
    • Malware
  • Software
    • Apps
    • Web Browsers
  • Glossary
    • Cyber Security Acronyms
  • About Ask Cyber Security
    • Authors
    • Contact Us
  • VPN
    • How Do I Know If My VPN is Working?
    • Best Free VPN iPhone
    • Why Use a VPN?
    • NordVPN vs IPVanish
    • Private Internet Access Download
    • Best VPN for Streaming
      • TikTok VPN
    • VPN Porn
    • Computer Security Software – What You Really Need
  • Tutorials
  • ChatGPT
    • Does ChatGPT Save Data?
AskCyber Home » News » News » T-Mobile Says 40 million Customers’ Data Breached

T-Mobile Says 40 million Customers’ Data Breached

2021-08-18 by Michelle Dvorak

T Mobile Data Breach

Millions of T-Mobile customers’, including prospective customers’ personal info compromised in major cyber attack

Note: We may earn a commission from products or services when you click on a link and make a purchase.

Mobile service provider T-Mobile issued an update about a widespread cyberattack against the company’s IT systems. The update comes one day after T-Mobile acknowledged that it has suffered yet another successful cyber attack.

This is a follow-up to claims made online that about 100 million T-Mobile customer user records had been exfiltrated from T-Mobile servers. The sensitive customer data was posted for sale online.

“Our preliminary analysis is that approximately 7.8 million current T-Mobile postpaid customer accounts’ information appears to be contained in the stolen files, as well as just over 40 million records of former or prospective customers who had previously applied for credit with T-Mobile,” says the update from T-Mobile.

Shares of T-Mobile US Inc (TMUS.O) were down 2.8% yesterday in afternoon trading.

The update acknowledges that the telecom became aware of the online claims last week. T-Mobile says that the company has verified that their attackers have indeed exfiltrated customer data. The stolen records do contain sensitive customer details.

For affected current and former post-pay customers as well as prospective T-Mobile customers stolen data includes:

  • Customers’ full names
  • Birthdates
  • Social Security Number

Driver’s license or ID information for some current and former post-pay customers and prospective T-Mobile customers is also included in the breached information. T-Mobile says that the company has no indication that the stolen data contains customers’ payment card numbers or other payment-related information.

News of the data breach hit the internet yesterday.

The forensic investigation is still underway. It often takes many months to understand the attack vector, what data was taken, the details of what was stolen, and who is impacted by the attack.

T-Mobile Cyberattack – What to Do Next

T-Mobile has not yet notified customers of their eligibility for identity protection services. If you fit the customer profile above, you should take immediate steps to secure your T-Mobile account, phone, and all your financial accounts.

  • T-Mobile customers should change their PIN number online immediately. They can also call T-Mobile customer service.
  • Change your T-Mobile account password. People often reuse the same password over-and-over again for multiple online accounts. If a hacker can get into one account, they can use your phone number, email, and password combination to break into other more critical accounts. Bank accounts, credit cards and tax returns are all at risk.
  • If you cannot remember a unique and hard-to-guess password for each online account you have, then use a password manager to create and store passwords for you.
  • Beware of future email phishing attacks. Cyber criminals sell your stolen personal information to other hackers. These fraudsters use your phone number an email to send fraudulent SMS text messages and scam emails. The scam emails are designed to look like official messages from T-Mobile or other common brands you may know. They use cleverly designed messages using official logos and spoofed websites to trick you.  The fake websites can steal your credit cards, passwords, and money.
  • Read our guide on how to spot a phishing email. Use extreme caution when opening any email or text message that contains and attachment or a link to click on.
  • Use a quality antivirus app to protect your phone, laptop, and email accounts from future scam emails and harmful websites.

Current T-Mobile customers can get more information and updates here https://www.t-mobile.com/brand/data-breach-2021

Filed Under: News Tagged With: T-Mobile

About Michelle Dvorak

Michelle writes about cyber security, data privacy focusing on social media privacy as well as how to protect your IoT devices. She has worked in internet technology for over 20 years and owns METRONY, LLC. Michelle earned a B.S. in Engineering from Rensselaer Polytechnic Institute. Michelle published a guide to Cyber Security for Business Travelers


LinkedInTwitterFacebook

Primary Sidebar

Subscribe to Our Free Newsletter

We Don't Share or Sell Your Info

Web Browsers

Where Are My Saved Passwords in Chrome?

Google Removes 70 Malicious Browser Add-ons from Chrome Web Store

Firefox 75 Reports Your Browser Settings to Mozilla

Categories

Cyber Security Field Guide

Computer Security While TravelingGet Our Cyber Security Field Guide - Available on Amazon!

Recent Posts

Security Marketing Manager – Remote

Sr. Associate, Cybersecurity Architect – Pfizer

Strategic Customer Success Manager – Cybersecurity – Opportunity for Working Remotely

Top 20 Passwords Leaked on Dark Web

ISU Cybersecurity Leader Job Opening

Cyber Security News

Top 20 Passwords Leaked on Dark Web

… [Read More...] about Top 20 Passwords Leaked on Dark Web

Apple Warns of Actively Exploited Zero-Day Flaw

… [Read More...] about Apple Warns of Actively Exploited Zero-Day Flaw

IRS Stops Facial Recognition System for Online Access

… [Read More...] about IRS Stops Facial Recognition System for Online Access

National Cybersecurity Alliance Announces Data Privacy Week

… [Read More...] about National Cybersecurity Alliance Announces Data Privacy Week

More Cyber Security News

Tags

amazon Android Apple bitcoin China chrome CISA credit card DarkSide DHS DOJ Equifax Europe Facebook facial recognition FBI Firefox FTC games GDPR Google Government hacker identity theft India iPhone Iran IRS LinkedIn Microsoft North Korea PayPal phishing phishing email ransomware REvil Russia smartphone T-Mobile TikTok tutorial VPN WhatsApp WiFi Windows

Government

CBP Looks to Access Airline Passenger Data

FTC Releases Cyber Threat Video Playlist

Malware Found on US Government Funded Phones

UK NCA Reaches Out to Youth to Deter Cybercrimes

More Posts from this Category

Footer

Menu

  • Home
  • About
  • Authors
  • Newsletter Signup
  • PRIVACY POLICY

Search

Why Use a VPN?

NordVPN vs IPVanish VPN Review

NAVIGATION

  • Data Breaches
  • Data Privacy
  • Gamers
  • Scams
  • Malware

MEMBER NJCCIC

New Jersey Cybersecurity & Communications Integration Cell

STAY CONNECTED

  • Facebook
  • Instagram
  • Pinterest
  • YouTube
  • Twitter
  • RSS

Copyright © 2023 · AskCyberSecurity.com · METRONY, LLC

Go to mobile version