The current state of the evaluated policy domain.
- iOS 9.0+
- macOS 10.11+
This property returns a value only when the
can method succeeds for a biometric policy or the
evaluate method is called and a successful biometric authentication is performed. Otherwise,
nil is returned.
The returned data is an opaque structure. It can be used to compare with other values returned by this property to determine whether the authorized database has been updated. However, the nature of the change cannot be determined from this data.