SecItemCopyMatching for Touch ID without passcode fallback

Question

I am using SecItemCopyMatching to fetch a keychain item protected by Touch ID.

However, if Touch ID unlocking fails (or the user selects \"Enter Passcod

Answer 1

On iOS 8.3 and above, the passcode fallback option is hidden initially but still appears if the first finger presented is not recognised.

For iOS 9, two new policies have been added that do not fallback to passcode. These policies are kSecAccessControlTouchIDAny and kSecAccessControlTouchIDCurrentSet