Microsoft Defender EASM vs Synack Attack Surface Discovery: side-by-side comparison (2026)

Microsoft Defender EASM: Discovers and monitors external-facing assets and vulnerabilities. Built by Microsoft.

Synack Attack Surface Discovery: External attack surface mgmt with asset discovery and on-demand pentesting. Built by Synack.

The table above shows where their features, integrations, deployment and company size fit differ.

Microsoft Defender EASM is made by Microsoft. Synack Attack Surface Discovery is made by Synack. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. Microsoft Defender EASM and Synack Attack Surface Discovery are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ.