'This security key doesn't look familiar' error is thrown when using a Yubikey for MFA

Version Affected:  9.x+

Description:  

After enrolling a Yubikey, and attempting to use it as an MFA option, the error 'This security key doesn't look familiar' may be displayed

Cause:  

This can be due to a difference in Hostname/URL used to register the Yubikey compared to the Hostname/URL of the Realm where the Yubikey is used as the MFA option

Enrollment Realm Example - https://company.domain.com/SecureAuthxx

Realm with Yubikey MFA option - https://alias-for-my-company.domainA.com/SecureAuthxx

Resolution:  

Retry the Yubikey enrollment again but this time using a Hostname/URL which matches the Realms the key will be used for as an MFA option

SecureAuth Knowledge Base Articles provide information based on specific use cases and may not apply to all appliances or configurations. Be advised that these instructions could cause harm to the environment if not followed correctly or if they do not apply to the current use case.

Customers are responsible for their own due diligence prior to utilizing this information and agree that SecureAuth is not liable for any issues caused by misconfiguration directly or indirectly related to SecureAuth products.