implementing-zero-trust-for-saas-applications
Implementing Zero Trust for SaaS Applications
When to Use
- When securing access to SaaS applications (Microsoft 365, Google Workspace, Salesforce, Slack)
- When implementing conditional access policies requiring MFA and device compliance for SaaS
- When deploying CASB for shadow IT discovery and unsanctioned app blocking
- When enforcing session-level controls (DLP, download restrictions) for sensitive SaaS data
- When governing OAuth application permissions and detecting excessive consent grants
Do not use as a replacement for SaaS-native security controls (configure those first), for applications with no SAML/OIDC support, or when SaaS vendor does not support API integration for CASB/SSPM.
Prerequisites
- Identity provider with conditional access: Microsoft Entra ID P1/P2, Okta
- CASB solution: Microsoft Defender for Cloud Apps, Netskope, or Zscaler CASB
- SaaS applications configured with SSO via SAML 2.0 or OIDC
- MDM enrollment for device compliance signals (Intune, Jamf)
- DLP policies defined for sensitive data categories
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