Office 365 - Audit Basic Authentication Usage

Basic authentication is a less secure authentication method which opens your Office 365 mailbox to cyberattacks like credential stuffing, brute force and password spray.

Important: Enabling Password Security in Office 365 (email) is recommended and should only be disabled as required for use with some non-Microsoft clients. If password security is enabled for your account, you will not see audit information as your account is secure.

Many email clients that use basic authentication are also capable of secure, modern authentication. Audit which devices and clients are using basic authentication to access your account and reconfigure if available:


Wisc Account Administration Site

Audit Basic Authentication Usage

  1. Log into Wisc Account Administration site. If you have administrative access to other accounts or domains, select the account you want to manage.
  2. Click the "Office 365" tab in the left-hand column. It will be expanded.
  3. Choose Password Security to see the audit information:

    Important: If password security is enabled for your account, you will not see audit information as your account is secure.

    Basic Auth Client List

  4. Use the connection information to discover devices/clients that are using basic authentication.
  5. Use the resources below to reconfigure devices/clients that are capable of using modern authentication.
    • Protocol: Exchange ActiveSync
  6. Once you have reconfigured devices/clients to use modern authentication, enable password security for your account.

See Also:




Keywords:microsoft office 365 office365 o365 email calendaring owa mapi eas ews imap pop3 smthauth smtp auth activesync exchange web services standards outlook on the web app owa security password authentication authn authorization authz basic modern modernauth basicauth duo netid login sso single sign on credentials username thunderbird eudora security audit multifactor mfa activesync iphone ipad ios   Doc ID:100541
Owner:O365 S.Group:Office 365
Created:2020-04-13 17:59 CDTUpdated:2020-09-09 15:13 CDT
Sites:Office 365
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