Microsoft Defender for Business

Endpoint security offering for small and medium businesses built on Defender for Endpoint capabilities. It runs on Android, iOS, macOS and Windows. Recorded capabilities include behavioral detection, central management console, malware detection and ransomware protection. The stated market is small and medium business. Microsoft Defender for Business is sold on subscription.

Current Version

—Not known

Product Page

microsoft.com/…/microsoft-defende…

Market

SMB

Licence

Paid

Price

USD 3 / monthly

Record Created

2026-09-19

Last Updated

2026-10-10

Microsoft is the largest security vendor in this index by installed base, and almost none of that was bought deliberately: Microsoft Defender Antivirus is built into Windows and switched on by default, so it protects any machine whose owner has not installed something else. That changes how its results should be read — it is the baseline every other product in this index is implicitly compared against. The paid products are a different thing from the built-in one. Microsoft Defender for Endpoint adds detection and response, threat and vulnerability management and central policy to the same engine; Microsoft Defender for Business is the smaller-organisation edition; Microsoft Defender XDR correlates signals across endpoints, identity, email and cloud apps; and Microsoft Sentinel is the SIEM above them. Microsoft Defender for Individuals, included with Microsoft 365, is the consumer application. Microsoft enters the public test cycles regularly, and its results are among the most consistently available in this index — useful, because for many readers the real question is not which product is best in the abstract but whether a paid product beats the one already installed. Vendor page →

Website

microsoft.com

Country

🇺🇸United States

Headquarters

🇺🇸Redmond, United States

Year Established

1975

Customers

1.6M organisations

Users

1.4B devices protected

Revenue

$331.8B (2026)