YubiKey setup in the context of a Microsoft 365 tenant

But have you turned multifactor authentication ALL the way on? - ITProMentor

Palantir, FIDO2, New Hires & Lost Keys

Yubico with Azure AD MFA

YubiKey setup in the context of a Microsoft 365 tenant

Configure MFA on Microsoft 365 with a Yubikey

How to enable FIDO2 password-less authentication with Microsoft Azure AD for use with Windows 10 and SaaS web apps

Microsoft Office 365 and Microsoft Entra ID User's account setup – Yubico

Yubico – Everything Cloud

FIDO2 security key sign-in with Entra ID (Azure AD) in five simple steps, by Jonas Markström

HOW TO - Use Yubikey with Microsoft 365 and Intune to login to Windows

Configure MFA on Microsoft 365 with a Yubikey