Microsoft Defender for Business
7.5#1 in data security posture management softwareAndroidiOSAPImacOS
VisitMicrosoft Defender for Business vs Open Systems CASB
Open Systems CASB
5.4#15 in cloud access security broker softwareWeb
VisitWhat both publish
| Fact | Microsoft Defender for Business | Open Systems CASB |
|---|---|---|
| Headquarters | Redmond, Washington, United States | Zürich, Switzerland |
| Integrations | The product integrates with Microsoft 365 Lighthouse and can work with remote monitoring and management tools and professional services automation software. | CASB works alongside Open Systems ZTNA, Secure Web Gateway, Firewall, and Email Security in its managed SSE layer. |
| Purpose | Microsoft Defender for Business is an endpoint security solution for small and medium-sized businesses with up to 300 users that helps protect devices from ransomware, malware, phishing, and other threats. | CASB provides visibility into cloud application usage and policy enforcement to help organizations govern cloud environments and shadow IT. |
| Support | Microsoft's Defender for Business documentation provides a guide for getting help or contacting support. | Level-3 engineers handle integration and operations 24/7; the page says support does not use L1 or L2. |
Microsoft Defender for Business plans
- Microsoft Entra Internet Access$5 a month
- Microsoft Entra Suite$12 a month
- Microsoft Defender for Business$3
Open Systems CASB plans
- Open Systems CASBPriced on request
Pick Microsoft Defender for Business if…
You want what its maker publishes above — check its page for the details.
Pick Open Systems CASB if…
Open Systems CASB suits organizations governing cloud applications, addressing shadow IT, and supporting compliance or IT governance. It is aimed at teams that want managed inline controls and centralized monitoring.