Issue
What is a security key?
Resolution
A security key is a small physical token that works as a verification method for MFA logins. This is a great option if a mobile app solution isn’t viable — for example, users don’t have company-provided mobile devices or they work in an environment (such as a PCI-compliant service center) where mobile devices aren’t permitted.
To see how to register and use this type of method, see Security Keys.