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Where should ISO/IEC 27001 preparation begin?

ISO/IEC 27001 sets requirements for an information security management system (ISMS). Preparation starts by defining the organization's scope and risks, then operating the system in day-to-day work.

Key dates
  1. 2022 edition published; Annex A restructured to 93 controls
  2. Transition from the 2013 edition ended

What a buyer is trying to establish

The buyer wants confidence that its supplier manages information security systematically. ISO/IEC 27001 defines ISMS requirements and calls for a system that is established, implemented, maintained and continually improved in light of the organization’s risks. A certificate refers to the organization and scope stated on it. It does not automatically cover every product, subsidiary or site.

Confirm the entity, scope and applicable version in the buyer’s request. A certificate is not a simple substitute for a product test or a SOC 2 report when the buyer specifically asks for one of those outcomes.

Define the scope before selecting controls

Scope identifies the business activities, information assets, people, locations, systems and external dependencies in the ISMS. A scope that is too broad can become difficult to operate; a scope that is too narrow may fail to address the service the customer relies on. Management, security, operations and sales should agree on the boundary and how it relates to customer-facing services.

The organization then assesses relevant risks, chooses treatments and assigns control owners. An ISMS includes more than technical tools: policies, awareness, supplier management, incident handling, internal reviews and ongoing improvement all matter. Written rules need to match actual operating records.

Workstream Key question
Scope Which entities, services, sites, systems and people are included?
Risk Which information-security risks arise from those activities?
Controls What measures apply, who owns them, and how are they operated?
Evidence What demonstrates that the system works within its stated scope?
Review Can internal audit and management review identify and resolve gaps?

Who performs certification

The organization establishes and operates the ISMS. Specialists may support scoping, risk assessment and preparation. An independent certification body performs the certification audit and issues the certificate. Its accreditation and relevance to the buyer’s market should be checked. AssureLane helps clarify requirements and coordinate specialist conversations; project responsibilities are agreed case by case.

How it relates to SOC 2

SOC 2 is an attestation report about controls at a service organization. ISO/IEC 27001 is an ISMS standard and certification route. The sensible order depends on the procurement wording, the buyer’s expectations and the organization’s existing practices. Some teams pursue both, but neither is a universal replacement for the other.

Ask the buyer which entity and outcome they expect, which services must be covered and when evidence is needed. That answer should shape the preparation plan.

Four stages that can be checked

  1. Confirm the scope. Describe included entities, activities, sites and technology, then check that it covers the service the buyer purchases.
  2. Record risks and treatment. Identify important information assets, threats and impacts, and document selected controls and owners.
  3. Operate the system. Policies, access, change, supplier, incident and awareness activities need real owners and records.
  4. Review and improve. Internal audit and management review identify gaps and track corrective actions. The independent certification body then audits the agreed scope.

These are not a promised schedule. Order and effort depend on the organization, scope, staff involvement and certification-body requirements.

What a certificate can and cannot answer

A buyer should be able to check the certified organization, standard version, scope, issuing body and current status. The certificate can support supplier due diligence, but it is not a security test of a software feature and does not cover every affiliate or product outside the scope. If the buyer requests a SOC 2 report for a specific service, clarify that separately.

What to bring to a first conversation

Bring the company and business structure, the service and sites proposed for scope, existing security policies and risk assessments, a supplier inventory and the buyer’s exact wording. An initial scoping conversation can happen with incomplete materials, but the scope and certificate outcome cannot be promised in advance.

Once you have an initial scope, read the ISO/IEC 27001 ISMS readiness and certification pathway for project stages, company inputs and the independent certification body’s role.

General information only; not legal, audit or certification advice. Applicability, scope and professional responsibilities depend on your circumstances.

SourcesSources checked · 2026-09-26

  1. ISO — ISO/IEC 27001:2022
Next step

Your buyer is waiting. Start with a clear scope.

A 30-minute scoping call: confirm whether the buyer needs a report, certificate or questionnaire answers, what is in scope, and a realistic timeline.