SOC 2 vs ISO 27001: Which One Does Your Buyer Want?

SOC 2 is an attestation report written by a licensed CPA firm against the AICPA Trust Services Criteria. ISO 27001 is an international standard you get certified against by an accredited certification body. SOC 2 produces a report a customer reads. ISO 27001 produces a certificate you can display.

They are not competing standards and picking one does not lock out the other. The real question is which one your buyers ask for, because that is what drives the decision far more often than any technical difference between the two.

By Mac Jake, Founder & CEO, Orbix Tech Sdn Bhd · Last updated

SOC 2 vs ISO 27001 at a glance

 SOC 2ISO 27001
What you get out of it An attestation report, typically 40 to 100 pages, written by the auditor and shared under NDA A certificate, plus an audit report, that you can publish and put in a tender pack
Who issues it A licensed CPA firm, under AICPA attestation standards A certification body accredited to ISO/IEC 17021
What it measures against The Trust Services Criteria: security, availability, processing integrity, confidentiality and privacy. Security is mandatory, the rest are optional The ISO/IEC 27001 standard, with controls selected from Annex A and justified in a Statement of Applicability
Core requirement That the controls you claim to have were designed properly and, for Type II, operated over a period That you run an information security management system: risk assessment, treatment, objectives, internal audit, management review
Point in time or period Type I is a point in time. Type II covers a review period, commonly 3 to 12 months A point-in-time certification decision, then surveillance audits during a three-year cycle
How long it lasts No formal expiry, but buyers expect a report covering a recent period, so in practice it is annual Three years, with annual surveillance audits and a recertification audit at the end
Who usually asks for it US buyers, SaaS procurement teams, and security questionnaires from technology customers European, Middle Eastern and Asian enterprise buyers, government tenders, and regulated supply chains
Geography Originated in the United States and dominant there International, recognised in over 160 countries
Room for judgement You describe your own control environment, and the auditor tests what you described The management system requirements are prescriptive. Which Annex A controls apply is risk-based
What most first-timers underestimate Evidence collection across the whole review period, not just at audit time The documentation load of the management system itself, separate from the technical controls

Do you need SOC 2 or ISO 27001?

Ask your pipeline, not your engineers. The organisations that get this wrong pick on technical merit, then discover the deal they were chasing wanted the other one.

  • Selling to US technology companies, expect SOC 2 Type II in the security review
  • Bidding for European, Gulf or Malaysian government and GLC work, expect ISO 27001
  • Selling to banks and regulated financial institutions, expect ISO 27001 and often more on top
  • Early-stage with no clear pattern yet, ask the last five prospects what their security questionnaire asked for

Plenty of organisations end up holding both. The control work overlaps heavily, so the second one costs far less than the first.

Is a SOC 2 report the same as a certificate?

No, and calling it a certificate is a reliable way to look inexperienced in a procurement conversation. SOC 2 produces an auditor's opinion on a report you share under NDA. There is nothing to display.

  • ISO 27001 gives you a certificate with a number, an issuing body and an expiry, which a buyer can verify independently
  • SOC 2 gives you a report whose value is in the detail: the control descriptions, the tests performed, and any exceptions noted
  • A qualified SOC 2 opinion means the auditor found something. Buyers read that section first
  • Neither is a security guarantee. Both tell a buyer that someone independent looked

What is the difference between Type I and Type II?

Type I asks whether the controls were designed appropriately on one date. Type II asks whether they actually operated over a period. Buyers who know the difference want Type II.

  • A Type I is faster and cheaper, and is often used as a first step while evidence accumulates
  • A Type II covers a defined window, commonly 3 to 12 months, and the auditor samples across it
  • Most enterprise security reviews will accept a Type I once, then expect a Type II the following year
  • There is no Type I or Type II distinction in ISO 27001. The nearest equivalent is the difference between initial certification and surveillance

How do the audit cycles compare?

ISO 27001 runs on a fixed three-year rhythm. SOC 2 has no formal expiry but behaves like an annual obligation because buyers ask for a recent period.

  • ISO 27001: certification audit in two stages, then surveillance audits in years one and two, then recertification
  • SOC 2: a fresh report each year covering the period since the last one, so gaps between reports get noticed
  • Both punish organisations that treat the audit as an event rather than a process
  • Evidence discipline is what makes year two cheaper than year one, under either framework

Where does the PDPA fit in?

Neither framework makes you compliant with Malaysian data protection law. They are security assurance frameworks. The PDPA is a legal obligation that sits alongside them.

  • A SOC 2 with the privacy criterion in scope covers some PDPA ground, but not the notice, consent or breach notification duties
  • ISO 27001 pairs with ISO 27701 for privacy information management, which maps more directly onto data protection law
  • You still need a DPO if you cross the thresholds under the 2024 amendment, whatever certificates you hold
  • Breach notification to the Commissioner within 72 hours is a legal duty, not an audit control

Treat security certification and data protection compliance as two workstreams that share evidence, not as one thing.

Where to take this next

Frequently asked questions

Neither is better in the abstract. SOC 2 is an attestation report favoured by US technology buyers; ISO 27001 is an international certification favoured in Europe, the Middle East, Asia and in government tenders. Pick the one your buyers ask for, and expect the second to be much cheaper once the first is done.

Yes, and many organisations selling internationally do. The underlying control work overlaps substantially, so the incremental effort for the second framework is far smaller than the first. The main additional cost is a second audit process rather than a second control environment.

A Type I can be completed in a matter of weeks once controls are in place. A Type II requires a review period, commonly 3 to 12 months, during which the controls must operate and generate evidence. Organisations that start collecting evidence only when the audit is booked lose that period.

Yes. ISO/IEC 27001 is an international standard recognised in Malaysia and widely requested in government, GLC and regulated-sector tenders. Certification is issued by accredited certification bodies rather than by any Malaysian government agency.

Neither does on its own. Both are security assurance frameworks; the PDPA is a legal obligation covering notice, consent, retention, cross-border transfers, breach notification and DPO appointment. They share evidence but do not substitute for one another.

SOC 2 Readiness Training covers the Trust Services Criteria, audit scoping, evidence management, operating effectiveness testing and how to read an auditor's report, over two days. It is HRD Corp claimable.

This comparison is general information, current as at 21 August 2026, and is not legal advice. Frameworks change, and the position for your organisation depends on what you process and where. Take specific matters to a qualified adviser.