Step 1
Log in to the Microsoft 365 My Account page. Expand the My Account section and select Security Info. You will be prompted to authenticate with MFA.
Step 2
Step 9
The security info screen will be updated with your new Passkey, which can now be used to authenticate.
Click Change next to Default sign-in method if you'd like to change your default, or follow OIT's Find and Update Your Security Info tutorial.