Microsoft Defender for Business:: MDB

in plain english

MDE's little sibling — endpoint detection and response built specifically for businesses with up to 300 employees. Same Defender engine, simpler admin experience, lower price point. Included in Microsoft 365 Business Premium; standalone for SMB without BP.

official microsoft definition

An enterprise-grade device security solution for small and medium-sized businesses (up to 300 employees). Provides next-generation antivirus, endpoint detection and response, threat and vulnerability management, and cyberthreat intelligence.

plans & eligibility

• Included in M365 Business Premium
• Standalone — USD $3/user/month (up to 300 users)
• Defender for Business servers — separate per-server add-on

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