AgileBlue M365 Security vs Zscaler Cloud Access Security Broker (CASB): Side-by-Side Comparison (2026)

AgileBlue M365 Security: Continuous M365 security monitoring for misconfigurations and risks. built by AgileBlue. Core capabilities include Continuous monitoring of M365 environment for misconfigurations, Coverage of Entra ID, Exchange, SharePoint, Teams, Defender, and Power Platform, Automated scanning aligned with Microsoft and CISA best practices..

Zscaler Cloud Access Security Broker (CASB): CASB for securing SaaS and IaaS with inline and out-of-band protection. built by Zscaler. Core capabilities include Inline real-time security with proxy architecture and TLS/SSL inspection, Out-of-band API-based scanning for data at rest, Shadow IT discovery across cloud applications..

Both serve the SSPM market but differ in approach, feature depth, and target audience.

AgileBlue M365 Security differentiates with Continuous monitoring of M365 environment for misconfigurations, Coverage of Entra ID, Exchange, SharePoint, Teams, Defender, and Power Platform, Automated scanning aligned with Microsoft and CISA best practices. Zscaler Cloud Access Security Broker (CASB) differentiates with Inline real-time security with proxy architecture and TLS/SSL inspection, Out-of-band API-based scanning for data at rest, Shadow IT discovery across cloud applications.

AgileBlue M365 Security is developed by AgileBlue. Zscaler Cloud Access Security Broker (CASB) is developed by Zscaler. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

AgileBlue M365 Security and Zscaler Cloud Access Security Broker (CASB) serve similar SSPM use cases. Review the feature comparison above to determine which fits your requirements.