[Skip to content](https://www.t-mobile.com/news/blog/experian-data-breach#maincontent) [Newsroom](https://www.t-mobile.com/news)Toggle secondary navigation - [Network](https://www.t-mobile.com/news/category/network) - [Devices](https://www.t-mobile.com/news/category/devices) - [Un-carrier](https://www.t-mobile.com/news/category/un-carrier) - [Community](https://www.t-mobile.com/news/category/community) - [Offers](https://www.t-mobile.com/news/category/offers) - [Business](https://www.t-mobile.com/news/category/business) English [Blog](https://www.t-mobile.com/news/blog) # A Letter from CEO John Legere on Experian Data Breach By John LegereSeptember 30, 2015  3 min read - Facebook IconShare on Facebook - Share on Twitter - LinkedIn IconShare on LinkedIn I’ve always said that part of being the Un-carrier means telling it like it is. Whether it’s good news or bad, I’m going to be direct, transparent and honest.  We have been notified by Experian, a vendor that processes our credit applications, that they have experienced a data breach. The investigation is ongoing, but what we know right now is that the hacker acquired the records of approximately 15 million people, including new applicants requiring a credit check for service or device financing from __September 1, 2013 through September 16, 2015__. These records include information such as name, address and birthdate as well as encrypted fields with Social Security number and ID number (such as driver’s license or passport number), and additional information used in T-Mobile’s own credit assessment. Experian has determined that this encryption may have been compromised. We are working with Experian to take protective steps for __all__ of these consumers as quickly as possible. Obviously I am incredibly angry about this data breach and we will institute a thorough review of our relationship with Experian, but right now my top concern and first focus is assisting __any and all__ consumers affected. __I take our customer and prospective customer privacy VERY seriously.__ This is no small issue for us. I do want to assure our customers that neither T-Mobile’s systems nor network were part of this intrusion and this did not involve any payment card numbers or bank account information. Experian has assured us that they have taken aggressive steps to improve the protection of their system and of our data. __Anyone concerned that they may have been impacted by Experian’s data breach can sign up for two years of FREE credit monitoring and identity resolution services at__ [__www.protectmyID.com/securityincident__](http://www.protectmyid.com/securityincident)__.__ Additionally, Experian issued a press release that you can read [here](http://www.prnewswire.com/news-releases/experian-notifies-consumers-in-the-us-who-may-have-been-affected-by-unauthorized-acquisition-of-a-clients-data-300152926.html), and you can view their Q&A at [Experian.com/T-MobileFacts](http://www.experian.com/t-mobilefacts). T-Mobile’s team is also here and ready to help you in any way we can. We have posted our own Q&A [here](https://www.t-mobile.com/landing/experian-data-breach-faq.html) to keep you as informed as possible throughout this issue.  At T-Mobile, privacy and security is of utmost importance, so I will stay very close to this issue and I will do everything possible to continue to earn your trust every day. Sincerely,      Tags[Un-carrier Inside](https://www.t-mobile.com/news/archive/un-carrier-inside) ## Related Stories [More Stories](https://www.t-mobile.com/news/stories) [ \ Un-carrierPress Release \ __T-Mobile Unveils Latest Un-carrier Move: Scam Shield — A Massive Set of Free Solutions to Protect Customers From Rampant Scams and Robocalls__ \ July 16, 2020|16 min read](https://www.t-mobile.com/news/un-carrier/scam-shield-protects-customers-from-scams-robocalls) [ \ BusinessBlog \ __Rising to the COVID-19 Challenge — How the new T-Mobile is Helping Bridge the Gap Between Students and Teachers__ \ April 15, 2020|5 min read](https://www.t-mobile.com/news/business/keeping-students-connected-covid-19) [ \ CommunityStory \ __Pants or No Pants? That Is the Question!__ \ April 06, 2020|11 min read](https://www.t-mobile.com/news/community/7-pro-tips-to-make-working-from-home-work) [ \ Un-carrierPress Release \ __T-Mobile Agrees to Sell $19 Billion of Senior Secured Notes__ \ April 03, 2020|5 min read](https://www.t-mobile.com/news/un-carrier/t-mobile-to-sell-senior-secured-notes)