Microsoft Defender for Business
Part of Defender for Business
Defender for Business Included in 5 licenses
Microsoft 365 Business Premium Business Standard plus a slice of enterprise security — Intune device management, Entra ID P1, and Defender for Business — for small businesses that need managed devices; capped at 300 seats.
Microsoft Defender for Business Endpoint antivirus, detection, and response sized for organizations under 300 seats — the small-business counterpart to Defender for Endpoint.