It's more like Apple or Samsung or Sony or Nokia or Google or One or whatever your phone manufacturer is. There's no way around trusting your phone manufacturer

It's more like Apple or Samsung or Sony or Nokia or Google or One or whatever your phone manufacturer is. There's no way around trusting your phone manufacturer with your biometrics. Even phones that don't offer biometric devices officially need to be trusted not to have hidden fingerprint sensors or iris scanners or whatnot.