Re: [webauthn] Provide an explicit way to opt out of multi-device syncing/backups (#1714)

> unless the RP is doing something better than email password reset now they have no reason to reject multi-device credentials.

Every financial institution in the EU is doing something better than email password resets, as is required by regulations.

> We should concentrate on how to uplift multi-device credentials if required and not focus on rejecting them.

Rejecting multi-device credentials will be possible, either via #1692 or more generally via requiring attestation and blocking all implementations known to sync. 

The suggestion here is to offer RPs an option to indicate a preference for (not) syncing. This would allow implementations to invoke alternative behavior without requiring user intervention (for implementations that make sync capability a user choice via opt-in or opt-out, per credential or globally).

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Received on Wednesday, 30 March 2022 19:33:27 UTC