FIDO2 Security Key Entra is a FIDO2-compatible hardware security key used with Microsoft Entra for strong phishing-resistant authentication.
Simple definition
FIDO2 Security Key Entra is a FIDO2-compatible hardware security key used with Microsoft Entra for strong phishing-resistant authentication. It belongs to the Microsoft 365 / Entra / Intune vocabulary and is useful when reading architecture diagrams, product documentation, logs, or administration procedures.
What is it used for?
Its main purpose is to provide passwordless sign-in or a strong factor cryptographically bound to the legitimate service. The practical value depends on the surrounding architecture, security model, and operational requirements.
How does it work?
The key creates public-key credentials bound to the account and service domain. Authentication requires possession of the key and usually a local gesture/PIN.
Key points
- Scope: A FIDO2-compatible hardware security key used with Microsoft Entra for strong phishing-resistant authentication.
- Operational goal: Provide passwordless sign-in or a strong factor cryptographically bound to the legitimate service.
- Implementation: The key creates public-key credentials bound to the account and service domain. Authentication requires possession of the key and usually a local gesture/PIN.
Points to watch
Plan enrollment, backup keys, and account recovery so a lost key does not permanently lock out the user.
In short
FIDO2 Security Key Entra = a FIDO2-compatible hardware security key used with Microsoft Entra for strong phishing-resistant authentication. Use it when you need to provide passwordless sign-in or a strong factor cryptographically bound to the legitimate service.