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ISO 27017 vs 27018: What Vendors Actually Publish

ISO 27017 and 27018 are extensions of an ISO 27001 certificate, not standalone badges. Here is how to check a vendor's real scope statement.

Solomon AmosPublished 12 Oct 20269 min read

Trust centres love a wall of badges, and ISO 27017 and ISO 27018 are two of the most common logos sitting next to ISO 27001. The trouble is that neither standard has its own certification scheme. Both are written as supplementary guidance that extends ISO/IEC 27002, the control catalogue underneath ISO/IEC 27001, so a vendor cannot hold a freestanding "ISO 27017 certificate" or "ISO 27018 certificate" in the way it holds an ISO 27001 certificate. What actually happens is an extension: a certification body audits the extra controls and then widens the scope statement on the existing ISO 27001 certificate, or issues a supplementary document that cites the base certificate number. If a vendor's trust centre shows the two logos but gives you no certificate number, no scope statement and no way to check a registry, you are looking at marketing, not evidence.

What ISO/IEC 27017 and 27018 actually cover

ISO/IEC 27017:2015 is a code of practice for information security controls specific to cloud services. It takes the ISO/IEC 27002 control set and adds cloud-specific implementation guidance plus a handful of entirely new controls, covering things like who is responsible for configuring a shared virtual environment, how assets are returned or deleted when a cloud contract ends, and how a cloud service customer's administrative access is segregated from the provider's own staff. It applies to both cloud providers and cloud customers, which is why the standard writes guidance for each side of the relationship separately.

ISO/IEC 27018:2019 narrows the focus to privacy. It extends the same ISO/IEC 27002 base with controls for organisations acting as a processor of personally identifiable information in a public cloud. That means controls on notice and consent, disclosure of where data is stored and processed, rules on using subcontracted processors, and obligations to return or delete personal data at the end of a contract. It sits closer to ISO/IEC 27701 in intent, though 27701 is a full privacy information management system and 27018 is a narrower, cloud-specific code of practice.

Why neither standard is certifiable on its own

Accredited certification bodies issue certificates against management system standards, which have a defined structure of clauses, a required Statement of Applicability (SoA), and a surveillance audit cycle. ISO/IEC 27001 has that structure. ISO/IEC 27017 and 27018 do not. They are code-of-practice documents, meaning they tell an organisation what good controls look like but do not define a management system to be audited in isolation. A certification body cannot run a standalone audit against 27017 and hand out a certificate for it, because there is no accreditation scheme set up to do that.

What certification bodies do instead is extend an existing ISO/IEC 27001 audit. During the same audit cycle, assessors test the organisation's SoA against the additional 27017 or 27018 control sets. If the organisation passes, the certificate's scope statement is updated to name the extension explicitly, for example "including ISO/IEC 27017:2015 and ISO/IEC 27018:2019 for cloud services". Some certification bodies issue this as a short supplementary certificate referencing the base ISO 27001 certificate number rather than editing the original document. Either way, there is always a parent ISO 27001 certificate underneath. A vendor cannot show you 27017 or 27018 coverage without also being able to show you the ISO 27001 certificate it attaches to.

0
Standalone 27017 or 27018 certification schemes
Both standards extend an existing ISO/IEC 27001 scope rather than being audited independently.
31 Oct 2025
IAF MD 26 transition deadline
Certificates still citing the ISO/IEC 27001:2013 edition lapsed on this date, which also affects any 27017 or 27018 extension attached to them.
2
Sides of the relationship ISO 27017 addresses
The standard writes separate guidance for the cloud service provider and the cloud service customer.

The practical difference between 27017 and 27018

Buyers often ask for "27017 and 27018" as a pair because cloud vendors tend to pursue both extensions together, but they answer different questions. 27017 is about securing the cloud service itself. 27018 is about what happens to personal data once it is inside that service. A vendor can reasonably hold one without the other, for example a cloud infrastructure provider with no direct access to customer personal data might carry 27017 but have less reason to pursue 27018.

StandardPrimary focusTypical audienceWhat it adds to ISO/IEC 27002Example control area
ISO/IEC 27017:2015Cloud service securityCloud providers and cloud service customersCloud-specific implementation guidance plus new controlsVirtual machine hardening, asset return on contract termination, segregation of provider and customer administrative access
ISO/IEC 27018:2019Protection of PII in public cloudsOrganisations acting as a cloud PII processorPrivacy-specific controls layered on the security baselineNotice and consent, disclosure of data location, use of subcontracted processors, deletion or return of PII at contract end

ISO/IEC 27017 and 27018 both extend ISO/IEC 27002 but answer different questions: service security versus data handling.

Diagram showing ISO 27017 and ISO 27018 as extensions attached to a single ISO 27001 certificate scope statement
Both extensions attach to one underlying ISO 27001 scope rather than standing as separate certificates.

How a certification body actually extends the scope

  1. 1

    Base audit against ISO/IEC 27001

    The organisation holds or is pursuing certification against the 2022 edition of the management system standard. Certificates still citing the 2013 edition lapsed on 31 October 2025 under IAF MD 26, so an extension attached to a lapsed base certificate is not current evidence of anything.
  2. 2

    Additional control assessment

    Auditors test the organisation's Statement of Applicability against the relevant 27017 or 27018 control set, checking which of the additional controls are marked applicable and how they are implemented in practice.

  3. 3

    Scope statement update

    If the organisation passes, the certification body updates the ISO 27001 certificate's scope wording, or issues a short supplementary document that names the base certificate number it extends.

  4. 4

    Public register entry

    Many certification bodies maintain their own public register of issued certificates. The entry for the extension should be searchable there, independent of anything the vendor publishes on its own trust centre.

What to actually check on a vendor's page

Five minutes on the scope statement beats a badge

Open the certificate PDF, not just the trust centre logo. Confirm it names ISO/IEC 27017:2015 or ISO/IEC 27018:2019 explicitly in the scope text, confirm it cites the 2022 edition of ISO/IEC 27001 rather than the lapsed 2013 edition, confirm the certificate number, issuing body and expiry date, and cross-check the number against the certification body's own register where one is published. If a vendor can only point to a logo and a sentence of marketing copy, treat the claim as unverified rather than assuming the badge means what it implies.

This is the same discipline covered in how to read a trust centre: a badge wall tells you what a vendor wants to claim, the underlying document tells you what was actually audited. The same applies to the broader question of which framework to ask for when a report and a certificate are both on offer, since a SOC 2 report and an ISO 27001 certificate (with or without a 27017 or 27018 extension) answer different procurement questions and are not interchangeable.

Reading the extension on a real vendor page

Docebo's trust centre is a useful case because it lists ISO 27001, 27701, 27017 and 27018 together rather than as a single generic "ISO certified" badge. The point of the card below is not the vendor's specific certificate number, it is the pattern to look for: whether the 27017 and 27018 references sit inside the same scope statement as the ISO 27001 entry, whether the edition referenced is current, and whether the certifying body is named and checkable. Treat the layout as a template for reading any vendor's cloud-extension claims, not as a verdict on this one.

Docebo logo

Docebo · Trust report

Education · Public evidence as of 12 Oct 2026

5Documents and agreements

Legal and review documents Docebo publishes or offers, as of 30 Sep 2026.

2Security practices

Public statements from Docebo, shown as statements, not attestations, as of 30 Sep 2026.

  • Penetration testing · annual
  • Data residency · Australia, Canada, EU, India, US

1Subprocessors

Named on Docebo's public subprocessor list, last seen 30 Sep 2026.

Four ISO entries listed together is the layout to check against the underlying certificate scope, not take at face value. Every line is a dated public record from the FedRAMP Marketplace, the Data Privacy Framework list and Docebo's trust centre. A framework not shown means no public evidence was found, not that Docebo lacks it.CertReports

AWS, hyperscalers and the "ISO 27017 certified" shorthand

Large cloud providers are usually where buyers first meet ISO 27017 and 27018, because AWS, Microsoft and Google all publish extensions alongside their ISO/IEC 27001 certification. The standard's own description makes clear what the extension is actually for:

ISO/IEC 27017:2015 gives guidelines for information security controls applicable to the provision and use of cloud services by providing additional implementation guidance for relevant controls specified in ISO/IEC 27002 and additional controls with implementation guidance that specifically relate to cloud services.

That wording matters because it confirms the standard is additional guidance attached to a base control set, not a freestanding scheme. When AWS or any other hyperscaler says it holds ISO 27017, the useful question is which services and regions the certificate scope actually covers, since major providers typically scope certificates to specific service lists rather than their entire platform. The certificate document, available through each provider's own compliance portal, states this explicitly. A sales page that simply says "ISO 27017 certified" without naming a scope is making a claim that the underlying document may only partially support.

Side by side comparison of ISO 27017 cloud security scope and ISO 27018 personal data processing scope
27017 covers how the cloud service is secured. 27018 covers what happens to personal data once it is inside it.

Where this fits with the wider ISO 27001 picture

Any 27017 or 27018 claim is only as strong as the ISO 27001 certificate it rides on. The 2022 transition deadline closed out certificates still referencing the 2013 edition on 31 October 2025, and the index saw vendor pages that had not caught up with that change. A cloud extension attached to a lapsed base certificate is not current evidence, regardless of how recent the trust centre badge looks. Check the base certificate's edition and expiry before trusting anything built on top of it, and treat the ISO 27001 Annex A supplier controls listed in the regulations index as the baseline the cloud extensions are layered onto.

  • Look for the certificate number and issuing certification body, not just a logo.
  • Confirm the ISO/IEC 27001 edition cited is 2022, since 2013-edition certificates lapsed on 31 October 2025.
  • Check whether the scope statement names 27017 or 27018 explicitly, rather than listing a generic 'ISO certified' line.
  • Check the certifying body's own public register where one exists, rather than relying on the vendor's own page.
  • If the vendor also claims ISO/IEC 27701, confirm whether that is a separate privacy information management system certificate rather than the same 27018 extension restated.

People also ask

What is iso 27017 and 27018?

ISO/IEC 27017 is a code of practice extending ISO/IEC 27002 with cloud-specific security controls for both cloud providers and customers, covering things like virtual machine hardening and asset return at contract end. ISO/IEC 27018 extends the same base standard with controls for protecting personal data processed in public clouds, covering notice, consent and data location. Neither is a management system standard on its own; both attach to an existing ISO/IEC 27001 certificate scope.

What is the difference between iso 27017 and 27018?

27017 addresses cloud service security generally, shared between provider and customer, covering things like segregation of administrative access and configuration responsibility. 27018 addresses privacy specifically, covering how a cloud processor handles personal data on a customer's behalf, including consent, location disclosure and deletion on termination. A vendor can hold one, both, or neither as an extension listed on the ISO/IEC 27017 or ISO/IEC 27018 framework pages.

Is iso 27017 certifiable?

Not on its own. ISO/IEC 27017 is written as supplementary guidance to ISO/IEC 27002 rather than a management system standard with its own certification scheme. Certification bodies assess the additional cloud controls alongside an ISO/IEC 27001 audit and reference them in the certificate's scope statement or a supplementary document citing the base certificate. A vendor cannot hold a 27017 certificate independent of an underlying ISO 27001 certification.

Is aws iso 27017 certified?

AWS publishes an ISO/IEC 27017 extension through its compliance programme, issued alongside its ISO/IEC 27001 certification for a defined list of services and regions. As with any vendor, the certificate scope statement lists exactly which services are covered, so buyers should check that document rather than assume blanket coverage across the entire platform. Reading a trust centre properly, rather than trusting the badge alone, covers how to locate and read that scope.

ISO 27017ISO 27018ISO 27001cloud securityStatement of Applicabilitytrust centre evidence
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Solomon Amos · Founder, CertReports

Solomon builds CertReports, the public evidence index for vendor security reviews. PhD in machine learning and cybersecurity, two years embedded at HMRC digital programmes, founder of TapTax. He writes about what registries, trust centres and auditors actually publish, and how buyers can use it before the questionnaire goes out.

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