Hi team, is there a native way to detect if a change has been made to biometrics using FaceID or TouchID? Thanks in advance.
You can do this using the LADomainState type, or the evaluatedPolicyDomainState property on older systems.
Why would a third party have to know and the right to know?
Because some folks want to implement a security policy that only works with the current biometric setup. Indeed, the keychain implements this exact policy, via the .biometryCurrentSet property.
Note that these APIs don’t return detailed information about the biometric setup. Rather, they return an opaque hash that you can check between calls.
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