CASB vs SMP for SaaS security: what IAM teams should weigh

TL;DR: CASB and SaaS management platforms overlap on discovery and policy enforcement, but they solve different parts of the SaaS security problem: CASB focuses on cloud traffic, threat detection, and data protection, while SMP focuses on inventory, access control, and shadow IT visibility, according to Zluri. The real decision is which control plane closes your current identity and SaaS governance gap.

NHIMG editorial — based on content published by Zluri: SaaS Management CASB Vs SMP for SaaS security

By the numbers:

• Only 5.7% of organisations have full visibility into their service accounts.
• 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface.

Questions worth separating out

Q: How should security teams decide between CASB and SaaS management platforms?

A: Start with the control objective.

Q: Why do SaaS applications create identity governance risk?

A: Because each SaaS app introduces users, permissions, sharing paths, and offboarding obligations that must be governed.

Q: What breaks when SaaS discovery is not linked to deprovisioning?

A: Discovery without deprovisioning creates visibility without closure.

Practitioner guidance

• Separate discovery from governance in your evaluation Score CASB and SMP against different control outcomes.
• Tie SaaS inventory to access review workflows Require each discovered SaaS application to have an owner, an access path, and a removal workflow.
• Use identity lifecycle data to reduce shadow IT risk Cross-check SSO, directory, and HR signals against SaaS usage so hidden apps and stale users are surfaced together.

What's in the full article

Zluri's full article covers the operational detail this post intentionally leaves for the source:

• The side-by-side feature comparison for visibility, compliance, and threat detection across CASB and SMP
• The step-by-step Zluri interface walkthrough for application review, security tabs, and risk scoring
• The platform-specific discovery methods and access-management workflow used to identify SaaS usage
• The detailed explanation of how the product classifies managed, unmanaged, restricted, and review-needed apps

👉 Read Zluri's comparison of CASB and SaaS management for SaaS security →

CASB vs SMP for SaaS security: what IAM teams should weigh?

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