Quick answer: ISO 27001 and SOC 2 are two different frameworks organizations use to prove information security, and are chosen by purpose. ISO 27001 is an international standard and results in a certificate proving that you have established and maintain an information security management system; it is recognized worldwide. SOC 2 is common especially in the North American market and is an audit report in which an independent auditor verifies that your security controls operate in line with certain principles. The choice is determined by one question: which one do your target market and customers want? ISO 27001 is more sought after in Europe, the Middle East and the global market; US based technology and SaaS customers usually ask for a SOC 2 report. Because the two largely overlap, if one is ready the other is much easier to obtain.

When an organization wants to prove information security to its customers, the two names it most often encounters are ISO 27001 and SOC 2. Which one is needed is often unclear, and the wrong choice leads to loss of time and cost. This article clearly separates the two frameworks and provides a selection matrix.

ISO 27001 and SOC 2, in one sentence

  • ISO 27001. An international standard. It requires you to establish and maintain an information security management system (ISMS), and at the end you get a certificate from an accredited body.
  • SOC 2. An audit report. An independent auditor examines and reports whether your security controls operate in line with certain trust principles (such as security, availability, confidentiality).

In short, ISO 27001 is a certificate, SOC 2 is an audit report. ISO 27001 documents the existence of the system, SOC 2 that the controls operate.

Selection matrix

Your situation Recommended Why
Europe, Middle East, global market ISO 27001 Standard recognized worldwide
US based SaaS and technology customers SOC 2 Common expectation in North America
Public tenders and regulated sectors ISO 27001 The certificate is concretely accepted
Fast customer demand (one large customer) SOC 2 An audit report can be provided faster
Both global and US markets ISO 27001 plus SOC 2 Both together thanks to the overlap

The essence of this matrix is: the right choice is determined not by the security level but by the expectation of your target market and customer. Both are strong frameworks; the difference is who recognizes which.

How much they overlap

ISO 27001 and SOC 2 share largely the same security controls: access management, risk assessment, incident response, business continuity and supplier security. So if you have prepared for one, the extra work needed for the other is much reduced. ISO 27001 and KVKK compliance also overlaps with most of these controls; if you have a solid foundation the compliance burden is reduced, not multiplied.

Relationship with other frameworks

ISO 27001 and SOC 2 are not evaluated alone. For an organization serving Europe, NIS2 and DORA requirements are added on top of these frameworks. In terms of supplier security, supply chain risk management is part of both frameworks. The right strategy is to build these frameworks not separately but on shared controls.

How preparation works

1. Scope and gap analysis

The scope is determined by which framework you are preparing for, and your current state is compared to the requirements and gaps identified.

2. Establishing and documenting controls

Missing controls are established, policies and processes documented. In ISO 27001 this is a management system, in SOC 2 the operation of controls.

3. Testing and resilience

That the controls actually operate is proven with regular penetration testing and technical verification. The document must be supported by a working control.

4. Audit and maintenance

In ISO 27001 the accredited body issues the certificate, in SOC 2 the auditor issues the report. Both are a maintained process, not one time.

ISO 27001 and SOC 2 readiness with DSET

DSET helps you determine the right framework based on your organization's target market and runs the preparation from gap analysis to audit. It performs the required technical verification and penetration tests at scale with the local AI engine KAOS and documents every finding with a working proof. So your documents are supported not only on paper but by proven controls.

Frequently asked questions

Should I get ISO 27001 or SOC 2? Not the security level but your target market decides. ISO 27001 is more sought after in Europe, the Middle East and the global market; US based technology and SaaS customers usually want SOC 2. Asking what your customer wants is the best start.

Do I need to get both? If you operate in both the global and US markets, both can be valuable. The good news is that because they largely overlap, if one is ready the extra burden of the other is small.

I have an ISO 27001 certificate, how much work is needed for SOC 2? ISO 27001 is a strong foundation and most controls overlap. For SOC 2, additional evidence and reporting to show the auditor that the controls operated over a certain period is needed. It is much easier than starting from scratch.

Sources

To choose the right framework between ISO 27001 and SOC 2 for your organization and run the preparation with proven controls, contact DSET. We provide compliance consulting and penetration testing from our Ankara Hacettepe Teknokent laboratory.