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[T-Priority](https://www.t-mobile.com/t-priority) - [SuperMobile](https://www.t-mobile.com/business/plans/supermobile) [](https://www.t-mobile.com) UPDATED AS OF SEPTEMBER 8, 2021 # NOTICE OF DATA BREACH: Keeping you and your business safe from cybersecurity threats. What you need to know and how we’re protecting you and your business.  Customers trust us with their private information and we safeguard it with the utmost concern. A recent cybersecurity incident put some of that data in harm’s way, and we apologize for that. We take this very seriously, and we strive for transparency in the status of our investigation and what we’re doing to help protect you and your business. __IMPORTANTLY, we have NO information that indicates social security number, business or personal financial information, payment information, credit or debit card information, account numbers, or account PIN and passwords were accessed.__ __Read more from Mike Katz, Executive Vice President, T-Mobile Business Group. Read now__ To our business customers, As we first shared on our Newsroom on August 16, 2021, we have been urgently investigating a highly sophisticated cyberattack against T-Mobile systems. Our customers are at the center of everything we do, and we take protecting you and your information very seriously. We will continue to work around the clock to ensure we are taking care of you and your data, first and foremost. Late last week we were informed of claims made in an online forum that a bad actor had compromised T-Mobile systems. We immediately began an exhaustive investigation into these claims, and brought in world-leading cybersecurity experts to help with our assessment. We then located and immediately closed the access point that we believe was used to illegally gain entry to our servers. Our investigation is ongoing, but at this time we have no indication that the data contained in the stolen files included any customer financial information, credit card information, debit or other payment information. No account numbers, PINs, passwords, or financial information were compromised in any of these files of enterprise/government customers or prospective enterprise/government customers.  __What We Are Doing__ Based on current information regarding the compromised data and our account protection protocols, we do not believe the stolen data can be used to access any business customer accounts or devices in an unauthorized manner. Our T-Mobile for Business Team of Experts team stands at the ready to assist you with any precautionary account changes you may wish to make. Again, with our current account management protocols, we do not believe the data stolen can be used for unauthorized account access. Call [611](tel:611) or [1-877-347-2127](tel:1-877-347-2127) to reach T-Mobile for Business Team of Experts. Once we conclude our investigation, all impacted customers will have available to them detailed information on what type of data was accessed. You have my commitment that we will continue to keep you updated as we learn additional facts through our investigation that may cause the details above to change or evolve. My team and I understand you will have questions and concerns, and resolving those is critically important to us. We know you run your businesses on the services we provide, and we will continue to keep you informed and supported so you can focus on what’s most important – running your organization. Mike Katz EVP, T-Mobile Business Group ## What happened: On August 17, 2021, T-Mobile learned that a bad actor illegally accessed and/or acquired company and personal data. The bad actor first gained access to T-Mobile systems on or before July 19, 2021. Our investigation is ongoing, but we have verified that a subset of T-Mobile data had been accessed by unauthorized individuals and the data stolen from our systems did include some publicly available company and private personal information. The latest details about the affected data are available [here](https://www.t-mobile.com/news). ## What happened: ## Information involved: __IMPORTANTLY, we have NO information that indicates social security number, business or personal financial information, payment information, credit or debit card information, account numbers, or account PIN and passwords were accessed.__ Our investigation is ongoing and this information may be updated. The exact company and personal information accessed varies by business and individual. We have determined that the types of impacted business information include: Business name, federal tax ID, business address, contact name and business phone number. We have determined that the types of impacted personal information include: Names, dates of birth, addresses, phone numbers. We have also determined that IMEI and IMSI numbers may have also been accessed. ## Information involved: ## What we’re doing: We’re relentlessly focused on taking care of our customers—that has not changed. We’ve been working around the clock to address this event and continue protecting you, which includes taking immediate steps to protect all individuals and companies that may be at risk. We also have dedicated resources conducting business account reviews. ## What we’re doing: ## What you can do: As we move quickly to protect you and your business, we also want to equip you to protect yourself and your company. It’s recommended that you and your business take proactive steps regularly to protect your data and identity, and now’s a great time to do that. __We have NO information that indicates social security number, business or personal financial information, payment information, credit or debit card information, account numbers, or account PIN and passwords were accessed.__ Still, the following steps are always smart practices to help keep your account more secure. We encourage you to complete these actions as soon as possible: ## Further protect your T-Mobile account. Use our free Account Takeover Protection service to help protect against an unauthorized user fraudulently porting out and stealing your phone number. [See how](https://www.t-mobile.com/support/plans-features/account-takeover-protection) ## Further protect your T-Mobile account. ## Protect your identity with McAfee. Sign up by December 27, 2021, for McAfee® ID Theft Protection Services FREE for two years provided on behalf of T-Mobile. [Claim now](https://www.t-mobile.com/privacy-center/education/online-safety-cybersecurity) ## Protect your identity with McAfee. ## Additional resources. Check out more ways to protect you and your company. [See how](https://www.t-mobile.com/support/plans-features/help-with-scams-spam-and-fraud) ## Additional resources. ## Questions? 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