Assetnote ASM vs Microsoft Defender EASM: side-by-side comparison (2026)

Assetnote ASM: External attack surface management platform with continuous asset discovery, built by Assetnote.

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

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

Assetnote ASM is made by Assetnote founded in 2018-01-01T00:00:00.000Z. Microsoft Defender EASM is made by Microsoft. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

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