GLIMPS Email Security for M365 vs Microsoft Defender for Office 365: side-by-side comparison (2026)

GLIMPS Email Security for M365: AI-based email security for M365 with phishing, BEC & malware detection. Built by GLIMPS.

Microsoft Defender for Office 365: Email and collaboration security for Microsoft 365 environments. Built by Microsoft.

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

GLIMPS Email Security for M365 is made by GLIMPS. Microsoft Defender for Office 365 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. GLIMPS Email Security for M365 and Microsoft Defender for Office 365 are both Email Security Platforms products, and both cover Microsoft 365. Use the table above to see where features, deployment and company size fit differ.