ISO 27001 vs. SOC 2: Which Should You Get ?

Both SOC 2 and ISO 27001 are security frameworks, but they differ significantly in scope, certification processes, and geographic reach.

SOC 2 is a U.S.-based, service-specific framework created by the American Institute of Certified Public Accountants (AICPA). It focuses on protecting customer data in cloud-based services and SaaS environments.

ISO 27001 is an internationally recognized standard for building an Information Security Management System (ISMS), covering data security across all organizational operations.

SOC 2: service organization control 2

SOC 2 is a standard developed by the AICPA for service providers handling client data. It covers the privacy, security, availability, processing integrity, and confidentiality of customer information.

It targets organizations providing services to other businesses — SaaS providers, cloud hosting, managed services. The framework is built around the Trust Services Criteria, which maps to those five principles.

Audits come in two forms. Type I evaluates control design at a point in time. Type II assesses whether those controls actually operated effectively over a period of six to twelve months. The output is an audit report — not a certification — that you share with clients to demonstrate your security practices.

ISO 27001: international standard for information security management systems

ISO 27001 is a global standard from the International Organization for Standardization (ISO) for managing information security risk. Unlike SOC 2, it’s a formal certification that applies to any organization regardless of size, industry, or geography.

The standard requires building an ISMS grounded in risk assessments, with specific controls outlined in Annex A. Certification involves a two-stage external audit: Stage 1 checks your documentation and readiness; Stage 2 tests whether the ISMS actually works and that Annex A controls are in place. You recertify every three years, with surveillance audits in between.

ISO 27001 signals a systematic approach to security risk management. It carries more weight than SOC 2 with global enterprises and regulators, especially outside the U.S.

ISO 27001:2022: The 9 Critical Updates You Need to Know

All organizations that hold a current ISO 27001:2013 certification are required to undergo a transition audit to be certified to the 2022 version. Certification and recertification against ISO 27001:2013 were allowed until April 30, 2024.

However, companies should begin to update their ISMS to comply with the requirements in this new revision as soon as possible. Any company currently certified against ISO 27001:2013 must transition no later than October 31, 2025.

Here are checklists for updating policies, addressing new security threats, and managing changes in organizational structure. This source is ideal for understanding how to align risk assessment and information security management with ISO 27001’s latest requirements

Key differences between SOC 2 and ISO 27001

Aspect	SOC 2	ISO 27001
Scope of Focus	Client data protection (mainly for U.S. service providers)	Comprehensive ISMS (risk-based)
Standard Structure	Trust Services Criteria (Security, Availability, Confidentiality, Processing Integrity, Privacy)	ISMS with controls outlined in Annex A
Certification vs. Reporting	Audit report (Type I or II)	Formal certification
Industry	Primarily technology and SaaS providers	Applicable to any industry
Audit Frequency	Annually or as agreed with clients	Recertification every 3 years with surveillance audits in between
Compliance Driver	Customer assurance	Compliance with global standards and regulatory requirements

Example use cases

• A U.S. SaaS company typically pursues SOC 2 first — customers ask for it directly and the audit scope is narrow enough to be manageable.
• A company selling into Europe or operating globally usually needs ISO 27001, either because enterprise procurement requires it or because local regulations expect a recognized ISMS.

Quick recap

SOC 2 reassures clients in the tech sector that you have controls around data protection. ISO 27001 demonstrates a broader commitment to managing security risk across the organization — and carries that commitment on paper with a formal certificate.

Many companies with international operations pursue both. They address different audiences: customers asking “are you secure?” versus regulators and enterprise procurement asking for documented proof.