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Microsoft Multi-Factor Authentication (MFA) FAQ
This page answers common questions about Multi-Factor Authentication (MFA). Select the headings below to see more information.
If your phone or key fob is lost or stolen, please take immediate action by submitting an . For guidance, see the 鈥淒evice Changes and Updates鈥 and 鈥淟oss or Issues with MFA Key Fob鈥 sections.