Checks/ThreatProtection/TP-002.psd1
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@{ CheckId = 'TP-002' Domain = 'ThreatProtection' Title = 'Safe Attachments blocks malicious attachments' Description = 'Evaluates whether Safe Attachments policies are enabled and configured to block, replace, or dynamically deliver suspicious attachments rather than merely monitor them.' Rationale = 'A monitor-only or allow action detonates malware sandboxing without preventing delivery, leaving the payload in the mailbox regardless of the verdict.' DefaultSeverity = 'High' MaturityWeight = 3 ZeroTrustPillars = @( 'AssumeBreach' ) LicenceDependency = 'Microsoft Defender for Office 365 Plan 1 or 2' PermissionDependency = @() DataSources = @( 'safeAttachmentPolicies' ) Remediation = 'Enable every Safe Attachments policy and set its action to Block, Dynamic Delivery, or Replace so malicious attachments are not delivered.' RemediationEffort = 'Low' References = @( 'https://learn.microsoft.com/defender-office-365/safe-attachments-policies-configure' ) } |