I'm working on an app where I need to find out if the user has changed iPhone's passcode from Settings. Please note that I know "How to determine if the iPhone has passcode enabled". What I want to know is if the user has changed the passcode or not!
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ask your question clearly, once you are edited the question after that you mention in comment – Anbu.Karthik Jul 16 '19 at 12:42
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AFAIK, it's not possible to observe passcode changes using any public iOS APIs.
The only thing you can do is check if the passcode (or biometric authentication method: TouchID, FaceID) is enabled or disabled using LocalAuthentication framework APIs.
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