Passkeys in Microsoft Authenticator are GA – And They’re a Game Changer!

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Organizations now have a free, practical, and phishing-resistant solution ready for mass deployment—even on mobile devices. You can now enjoy that vacation without interruption. Learn why adopting passkeys is critical to stopping token theft.
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You Should Know:

Passkeys are a significant advancement in cybersecurity, offering a phishing-resistant alternative to traditional passwords. Here are some practical steps, commands, and codes to help you integrate and understand passkeys better:

1. Enabling Passkeys in Microsoft Authenticator:

  • Open the Microsoft Authenticator app.
  • Navigate to the Passkeys section.
  • Follow the on-screen instructions to register a passkey for your account.

2. Verifying Passkey Setup:

  • Use the following PowerShell command to check if passkeys are enabled for your Microsoft account:
    Get-MsolUser -UserPrincipalName <your-email> | Select-Object StrongAuthenticationMethods
    
  • Ensure that `Passkey` is listed as one of the authentication methods.

3. Testing Passkey Authentication:

  • Simulate a login attempt on a device where the passkey is registered.
  • Use the following command to monitor authentication logs:
    tail -f /var/log/auth.log
    
  • Look for entries indicating successful passkey authentication.

4. Revoking Passkeys:

  • If a device is lost or compromised, revoke the passkey immediately:
    Revoke-MsolDevice -DeviceId <device-id> -Force
    

5. Linux Integration:

  • For Linux systems, use `libfido2` to manage passkeys:
    sudo apt-get install libfido2-dev
    
  • Test passkey authentication with:
    fido2-token -L
    

6. Windows Integration:

  • Use Windows Hello for Business to manage passkeys:
    Set-MsolDomainFederationSettings -DomainName <your-domain> -SupportsFido2 $true
    

7. Mobile Deployment:

  • Ensure mobile devices are enrolled in your organization’s MDM (Mobile Device Management) system.
  • Push the Microsoft Authenticator app and passkey policies via MDM.

What Undercode Say:

Passkeys represent a paradigm shift in authentication, moving away from vulnerable passwords to more secure, phishing-resistant methods. By leveraging tools like Microsoft Authenticator, organizations can significantly reduce the risk of token theft and unauthorized access. Integrating passkeys across platforms—Windows, Linux, and mobile—ensures a seamless and secure user experience. For further reading, visit the official Microsoft documentation.

Remember, cybersecurity is a continuous process. Stay updated with the latest advancements and always verify your configurations with commands like `Get-MsolUser` and fido2-token.

References:

Reported By: Activity 7307426749087170561 – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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