Reason

Version number does not satisfy constraints (e.g. iOS version is too old)

Signature counter in the assertion is too high. This could mean either an implementation error on the client, or a compromised client app.

Team ID and/or bundle ID and/or stage (development, production) mismatch

Happens if the challenge in the attestation record does not match the expected challenge

Generic case, which must not happen for an authentic app. could be borked assertion data (initial counter not zero, invalid attestation data, etc, KID mismatch). In general, it is hard to tell whether app developers made a mistake or something fishy is going on

Returns a representation of an immutable list of all enum entries, in the order they're declared.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared.