Face biometric not working on Samsung s24 phone

I have been using face recognition to unlock bitwarden on my phone (samsung s24 android v14) for a year now with no problem. Now it doesnt work. When i check the “Account Security” option in the bitwarden app, it said unlock with biometrics is not compatible with the biometrics options available on this device.

Did bitwarden updated and took away this option? how do i fix it? Thanks.

Hi Linh,

Yes, the latest Bitwarden app now requires Class 3 biometrics. A previous version of the app allowed Class 2 and higher. (more info)

The short story on why is that with the migration from MAUI to a native codebase, we are dealing with different vulnerabilities. We identified an exploit of Class 2 biometrics that would allow an attacker to bypass biometric unlock. The result, unfortunately, is that now some biometric unlock methods that used to work will no longer work.

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So, S24 sensor is garbage?

Welcome, @SaidTorres to the community!

Not just Samsung and not just Bitwarden. Check out this reddit posting for some of what I found in Google searches.

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Welcome! I don’t think we can necessarily blame the sensor, though it is possible. As I understand it, the class designations are based on testing of false-positive and false-negative rates for the biometric authentication. It is possible that Samsung could improve existing hardware over time with software updates.

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