Describe the bug
When signing into Apple account with FIDO hardware security key, an error appears.
Similar issues have been reported but error codes differ slightly:
To Reproduce
- Sign out
- Signing in with an account which requires a hardware key
- An error appears
Expected behavior
You can sign in with hardware security keys(U2F) without any error.
Screenshot

Versions
- OS: macOS Tahoe 26.0.1
- Xcodes: 3.0.2 (34)
Hardware
- FIDO Hardware key: Titan Security Key USB-C/NFC
- vendor=0x096e, product=0x085b (FS ePass FIDO)
- PIN is not supported with this security key
- supports U2F / CTAP1