O365 Hardening
Lock down MFA, mail forwarding, external sharing and admin access in your tenant.
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:
Key features
01
Check for mailbox auditing and unified audit log search.
02
Email authentication: SPF, DKIM, and DMARC
03
Check for legacy protocols and basic authentication
04
Check for multi-factor authentication.
05
Check for mailbox auto-forwarding to remote domains
06
Check for allowed sign-in for all shared mailboxes
07
Check for anti-spam, anti-malware, and outbound spam policies
08
Check for mobile device policies
09
Default Alert policies
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