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Microsoft Defender for Business

Microsoft endpoint security for organizations up to 300 users, also included in M365 Business Premium.

Published price SMB MSP-friendly

Pricing note

from $3/user/mo

Standalone listed at $3.00 per user/month billed annually; up to 5 devices per user; server add-on $3 per server instance. Also included in Microsoft 365 Business Premium ($22/user/mo).

Budget band (estimate when evidence exists): Under $5k/yr

Last verified: 2026-09-24

Commonly compared to (public alts)

CrowdStrike Falcon Go, Bitdefender, Malwarebytes

Deploy model

saas, agent

Sources for claims