Biometric authentication is a security process that involves using some part of your physical body to authenticate you. In the case of Xumm, a finger print or face scan.
Biometric authentication is one of the cool features of Xumm but since it involves allowing access to the app or signing transactions, it is highly managed.
New security feature in Xumm
We upgraded the security of the biometric feature in Xumm v2.3.
If you use your finger print or face scan to open Xumm and/or sign transactions, Xumm will now check if the authorized fingerprint(s) / face(s) have been updated. If they have been updated, (in the iOS/Android security settings), Xumm will disable biometric authentication and revert exclusively to the six digit passcode configured during initial Xumm setup.
We did this because an attacker with access to your phone could add their own fingerprint, thus granting themselves access not only to your phone but also to your Xumm wallet.
On some phones, you might encounter the following message;
In order to fix this, you need to have BOTH a Fingerprint and a Face ID configured in order for it to work.
Go into Settings on your phone and select Biometrics and security.
Make sure you have both face and fingerprints setup.
We understand that you might have additional questions regarding this topic so you are welcome to contact us any time via the Xumm Support xApp in Xumm or you can simply scan this QR code with XUMM and be directed there automatically.