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mediumDefenderMicrosoft Defender XDRupdatem365_message_center · Jul 27, 2026
MDO Encrypted email attachment protection
Microsoft Defender XDR now provides protection for encrypted email attachments by addressing the issue where attachment passwords could prevent full threat analysis. This update enhances security by ensuring sensitive data is scanned even when encrypted.
“Services: Microsoft Defender XDR. <p><b>What and Why:</b></p> <p>Organizations commonly use encrypted or password-protected attachments to securely share sensitive information through email. However, when Microsoft Defender for Office 365 cannot obtain the attachment password during scanning or detonation, the conten…”
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threat_protectionvulnerability_management
Audience
security_engineercompliance_officer
Environment
cloud
Ontology Topics
AZ-500SC-300
Classification confidence: 95%
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