Microsoft Defender External Attack Surface Management (EASM) discovers externally facing assets across your organization and identifies shadow IT, forgotten infrastructure, and misconfigured services. It continuously monitors your external attack surface to detect changes, new exposures, and emerging risks. EASM provides risk scoring for exposed assets so security teams can prioritize remediation based on severity and exploitability.
Automatically discover internet-facing assets tied to your organization including domains, IPs, and web applications.
Identify unknown or unmanaged external assets and services that exist outside your security perimeter.
Detect known vulnerabilities on externally exposed assets to reduce your attack surface proactively.
Track certificate expiration, weak ciphers, and misconfigurations across your external-facing infrastructure.
Score and prioritize external exposures by severity and exploitability to focus remediation efforts.
Query your external attack surface using natural language to quickly find exposed assets and risks.