If you are an HHS employee, contractor, or affiliate, you can log into AMS with Fast Identity Online (FIDO) credentials by using your HHS-issued YubiKey token by clicking on the "Login" button under the "FIDO Security Key” panel on the AMS login page.
FIDO is a set of technology-agnostic security specifications based on free and open standards from the FIDO Alliance for strong authentication.
YubiKey is a security token, which looks similar to a USB thumb drive, with the ability to enable strong two-factor, multi-factor, and password less authentication.
If you do not know how to login with a FIDO Security key, a training module with details for the FIDO Credentials login procedure can be found here.