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MFA (multifactor authentication) adds an extra layer of security when you sign in.
Use Authenticator app as your default sign in method - it's quicker and more secure than SMS or phone call verification.
Need help? Follow our step-by-step guide.
You can update or add new sign in methods at any time.
If you receive a sign-in request that wasn't you, please contact the IT Helpdesk immediately.
Why do this?
Please contact the IT Helpdesk to reset your authentication settings.
More help from microsoft.com: