O365 Hardening

microsoft 365 hardening

O365 by default comes with an insecure configuration. Advanced security features are disabled by default. Therefore the email fraud detection and prevention capabilities are affected. We have a complete checklist for O365. Some of the key features are listed below:

  • Check for mailbox auditing and unified audit log search.
  • Email authentication: SPF, DKIM, and DMARC
  • Check for legacy protocols and basic authentication
  • check for multi-factor authentication.
  • check for mailbox auto-forwarding to remote domains
  • check for allowed sign-in for all shared mailboxes
  • check for anti-spam, anti-malware, and outbound spam policies
  • check for mobile device policies
  • Default Alert policies
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