[](https://www.t-mobile.com/privacy-center) [](https://www.t-mobile.com/privacy-center) - [Privacy notices](https://www.t-mobile.com/privacy-center/privacy-notices) - [Privacy dashboard](https://www.t-mobile.com/privacy-center/dashboard) - [Education](https://www.t-mobile.com/privacy-center/education) - [FAQs](https://www.t-mobile.com/privacy-center/faq) [Contact us](https://www.t-mobile.com/privacy-center/contact-us) Our Companies [](https://www.t-mobile.com) Explore Education Education - [Your privacy around the web](https://www.t-mobile.com/privacy-center/education/web-privacy) - [About the Trust Center](https://www.t-mobile.com/privacy-center/education/trust-center) - [Bug Bounty program](https://www.t-mobile.com/privacy-center/education/bug-bounty) - [Phone privacy](https://www.t-mobile.com/privacy-center/education/phone-privacy) - [Online safety and account protection](https://www.t-mobile.com/privacy-center/education/online-safety-cybersecurity) - [Family controls and privacy](https://www.t-mobile.com/privacy-center/education/family-controls) - Biometric authentication - [At a glance](https://www.t-mobile.com#anchor-at-a-glance) - [What is biometric technology?](https://www.t-mobile.com#anchor-what-is-biometric-technology) - [Benefits of on-device biometric authentication](https://www.t-mobile.com#anchor-benefits-of-ondevice-biometricnbspauthentication) - [How to enable on-device biometric authentication](https://www.t-mobile.com#anchor-how-to-enable-ondevice-biometricnbspauthentication) - [Related links](https://www.t-mobile.com#anchor-related-links) - [About personal data requests](https://www.t-mobile.com/privacy-center/education/about-personal-data-requests) - [Do Not Sell or Share My Personal Information](https://www.t-mobile.com/privacy-center/education/do-not-sell) - [Cookies and tracking](https://www.t-mobile.com/privacy-center/education/cookies-tracking) - [Your marketing preferences](https://www.t-mobile.com/privacy-center/education/marketing-preferences) YOUR PROTECTION # ​​Biometric authentication.​ __Time to read:__ 3 minutes __Last updated:__ October 1, 2024  ## ​​Biometric authentication.​ ## At a glance  __Face ID, Touch ID, and Fingerprint ID__ are common biometric authentication methods available on many phones and other electronic devices.  __Using biometric sign-in on your devices__ adds an important layer of security for your personal information and accounts.  __At T-Mobile, we encourage you to enable biometric authentication__ on your devices and to use this safety feature every time you access your apps and online accounts. ## What is biometric technology? Today, most new smartphones, tablets, laptops, watches, and desktop computers are equipped with technology that can recognize you in an instant. They use built-in digital sensors, cameras, fingerprint scanners, and microphones to collect physical or biological information about you. These representations of your unique characteristics are sometimes called biometric identifiers. ###### Here are the most common types of on-device biometric authentication: ###### Face ID Facial recognition software analyzes your features to create a fool-proof, mathematical map of your face. ###### Touch or Fingerprint ID Scans of your fingerprint or palm are collected to develop an unmistakable replica of your skin’s lines, ridges, loops, whorls, and arches. ###### Voice ID Voice recognition technology captures the sound of your voice, as well as the way you speak, so only you can tell your virtual assistant what to do.  #### Benefits of on-device biometric authentication Face, Touch, and Fingerprint ID let you sign into your devices or log into your online accounts and apps. These on-device biometric authentication methods help safeguard the information stored on your devices, in your apps, and online accounts. For example, if you like to use mobile banking, you’ll find that many financial institutions now require some form of biometric verification in addition to a password or PIN.
 ​Here are three reasons we encourage you to enable biometric sign-in on your devices and with your online accounts:​ ### Security If you want to prevent others from accessing your device and its contents, on-device biometric authentication offers the highest level of protection. Face ID, Touch ID, and Fingerprint ID are far more secure than passwords. Here’s why: - Your physical features are unique to you. - Your face or fingerprint data can’t be shared. - Scans of your face and fingerprints are converted into a unique mathematical representation that’s stored locally on your device. - This mathematical representation of your biometric data can’t be stolen, copied, or converted back into a scan of your face or fingerprints. ### Convenience Once you’ve enabled biometric authentication on your device, you can instantly unlock your phone, sign in to your apps and online accounts, and even authenticate purchases. It’s as easy as posing for a selfie or touching a sensor with your fingertip. - No more memorizing multiple passwords. - No more forgotten passwords. - No more searching for misplaced passwords. - No more mistyping a password. ### Privacy ​​​​The biometric data you use for authentication purposes remains stored on your device.​ #### How to enable on-device biometric authentication It’s easy to get started on your devices and in your T-Mobile app. ### On your Android device Learn how to set up Face or Fingerprint ID on your Samsung phone or tablet. Use a different brand? Your steps may vary slightly. [Get started](https://www.samsung.com/us/support/answer/ANS00062630/) ## On your Android device ### On your iPhone or iPad Set up Face ID on your Apple device, then use it to unlock the device, sign in to apps, and more. [Get started](https://support.apple.com/en-us/HT208109) ## On your iPhone or iPad ### In your T-Mobile app Once you’ve enabled Face or Fingerprint ID on your phone or device, you can use the feature to access your T-Mobile app. Follow the link, then scroll to “Log in with face or fingerprint.” You can even watch a video. [Get started](https://www.t-mobile.com/support/plans-features/t-mobile-app) ## In your T-Mobile app ## Related links -  YOUR PROTECTION ### [Your privacy around the web](https://www.t-mobile.com/privacy-center/education/web-privacy) Take control of your privacy on websites outside of T-Mobile. -  YOUR DATA AND ADS ### [Cookies and tracking](https://www.t-mobile.com/privacy-center/education/cookies-tracking) Learn more about cookies, other online tools, and tracking technologies, including how they work. -  YOUR PROTECTION ### [Online safety and account protection](https://www.t-mobile.com/privacy-center/education/online-safety-cybersecurity) Find ways to protect you and your family from online fraud and identity theft. ## Hello! Want to stay logged in? To keep your accounts safe, you'll be automatically logged out in:  Yes, stay logged in No, log me out ## Share your screen with an Expert __Get guided support over the phone or while shopping in-store__ - For your security, personal info, tabs, and notifications are automatically hidden. - You can stop screen sharing at any time. - Experts can only see what’s on T-Mobile.com. - Don’t use screen share while driving or in any situation where it's unsafe to focus on your screen. By clicking 'Accept and continue,' you are consenting to allow the Expert to view your screen for assisted navigation. This session may be recorded. To learn more, please visit the 
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