ORCA.239: No exclusions for the built-in protection policies.
| ID | ORCA.239 |
| Severity | High |
| Suite | ORCA |
| Product | Defender |
| Related products | Exchange Online |
| Feature | Safe Links |
| Security area | Email and collaboration protection |
| Resource type | Tenant |
| User impact of fixing | Low |
| Effort to fix | Low |
| Framework controls | nist-800-53-r5:SI-3 Malicious Code Protection |
| MITRE ATT&CK | T1566.001, T1566.002 |
| Reads from | Exchange Online |
| Licence needed | ATP_ENTERPRISE |
What this checks and how to fix it
Section titled “What this checks and how to fix it”Built-in protection policies provide catch-all protection against users not covered by higher order policies. Excluding users from the built-in protection policies may mean these users have reduced protections. It is important not to rely on the ‘built-in’ policies, as these policies only apply the minimum level of protections and should serve as a catch-all.
Remediation action
Section titled “Remediation action”Remove exclusions from the built-in protection policies.
Related Links
Section titled “Related Links”- Microsoft 365 Defender Portal - Safe links
- Recommended settings for EOP and Microsoft Defender for Office 365
Mito check, based on ORCA. Author: soulemike. Open-source licences.
Open-source licences. CIS Benchmark material © Center for Internet Security, Inc.; CISA SCuBA baselines are public domain (CC0).
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