ISAE 3402 vs SOC 2: the governance gap identity teams miss

TL;DR: ISAE 3402 focuses on controls tied to financial reporting, while SOC 2 covers security, availability, processing integrity, confidentiality, and privacy for service organisations, according to Zluri. The distinction matters because identity governance must map assurance requirements to the actual access risks, review cadence, and evidence burden across human, NHI, and service-provider accounts.

NHIMG editorial — based on content published by Zluri: Access Management ISAE 3402 Vs SOC 2: What’s Best For Your Business?

By the numbers:

• Only 20% have formal processes for offboarding and revoking API keys, and even fewer have procedures for rotating them.
• 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface.
• 90% of IT leaders say properly managing NHIs is essential for a successful zero-trust implementation.

Questions worth separating out

Q: How should security teams decide between ISAE 3402 and SOC 2?

A: Choose ISAE 3402 when the main assurance question is whether service controls affect financial reporting.

Q: Why do identity controls matter in assurance reports?

A: Identity controls determine who can touch the systems and data being audited, so they directly shape the reliability of the evidence.

Q: What breaks when service accounts are not included in audit scope?

A: Audit evidence becomes incomplete because machine access can still affect financial processing, customer data, and security outcomes.

Practitioner guidance

• Separate assurance scopes in the identity programme Document which access controls support financial reporting evidence and which support security and privacy evidence.
• Tie access reviews to the assurance objective Use different evidence sets for financial controls, security controls, and third-party access.
• Prove operating effectiveness, not just policy existence Retain recurring evidence for approvals, reviews, removals, and exception handling over the audit period.

What's in the full article

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

• The article walks through the full ISAE 3402 and SOC 2 comparison table, including scope, reporting purpose, and audience differences.
• It explains Type I versus Type II reporting in more detail, which is useful when translating control design into audit evidence.
• The post includes use-case examples for financial services, SaaS, healthcare, and professional services that can help teams position the right assurance standard.
• It also outlines Zluri's access review workflow, including automated review and remediation examples that implementation teams may want to evaluate.

👉 Read Zluri's ISAE 3402 vs SOC 2 comparison for access governance teams →

ISAE 3402 vs SOC 2: the governance gap identity teams miss?

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