Source register
Follow the evidence.
Primary documents behind this edition. Accessed November 14, 2026; public web extractions may be cached.
Huntress: Managed Microsoft Defender
Vendor product page
Describes integrations with Defender for Endpoint, Business and Endpoint for macOS; Windows AV management scope differs from integration support.
Used in: Do you need MDR if you already have endpoint protection?
Microsoft Learn: Defender for Business FAQ
Vendor documentation
Up to 300 users, five client devices per user license, extra server licensing; listed platform support does not establish feature parity.
Used in: What does Microsoft Defender for Business include?, How do you choose endpoint security for Windows and Mac?
Microsoft Learn: Defender for Business overview
Vendor documentation
Standalone or Business Premium; Plan 1, selected Plan 2 and SMB features, not equivalent to full Plan 2.
Used in: Which cybersecurity tools does a small business need first?, Antivirus, EDR and MDR: what are you actually buying?, What does Microsoft Defender for Business include?, How much does small-business endpoint protection cost?
Microsoft US: Defender for Business plans and pricing
Vendor pricing page
Observed USD $3/user/month, paid yearly, annual auto-renewing subscription; not a total managed-security quote.
Used in: How much does small-business endpoint protection cost?
NIST: Small-business cybersecurity guidance by topic
Public-agency guidance
Topic index covers MFA, phishing, incident response and protecting data/devices; no vendor ranking.
Used in: Which cybersecurity tools does a small business need first?
Sophos: Managed Detection and Response
Vendor product page
Advertises 24/7 monitoring, investigation and response; contractual scope not independently established.
Used in: Antivirus, EDR and MDR: what are you actually buying?, Do you need MDR if you already have endpoint protection?