Allow registering multiple security keys in MFA
Currently, only a single security key can be registered as an MFA device. As a backup to this key, only other mechanisms such as authenticator apps can be used. It would be nice if multiple keys could be registered to avoid having to use a different method as the backup.

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Daniel commented
Please, please allow multiple security keys to be added :)
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Juan commented
The current implementation is terrible - whoever decided to allow only one security key should have their head examined.
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(Admin) B commented
This is quite important as a single security key is a single point of failure; using a weaker backup option weakens the whole MFA. Witness the recent attacks on Cisco and Cloudflare: Cisco got owned as their staff were using OTPs, Cloudflare didn't as they use security keys *only*.