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Two-Factor Authentication


Applies to: Office 365

Topic Last Modified: 2014-01-07

Typical authentication practices that require only a password to access IT resources may not provide the appropriate level of protection for information that is sensitive or vulnerable. Two-factor authentication is an authentication method that applies a stronger means of identifying the user. It requires a user to submit two of the following three types of identify proofs:

  • Something known (such as a password or PIN)

  • Something possessed (such as a smart card)

  • Something unique about the user's appearance or person (such as a fingerprint)

Two-factor authentication is an optional feature available with Office 365 Dedicated plans and ITAR-support plans. The table below lists the two-factor authentication methods that can be used with Office 365 services. Implementation, requirements, and limitations are described in the specific service descriptions documents shown in the table.


Available Two-Factor Authentication Methods Supporting Services Requirements, Implementation, and Limitations Details

Swivel PINSafe

Exchange Online

Two-Factor Authentication for Outlook Web App

RSA SecureID

Exchange Online

Two-Factor Authentication for Outlook Web App

Personal Identity Verification (PIV)

(ITAR-support plans only)

Exchange Online

SharePoint Online

FISMA and ITAR-Support Solutions Service Description

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