Security & cloud

Make cloud processing responsibilities transparent

ISO/IEC 27018:2025 provides privacy guidance for public cloud providers acting as personal data processors. It addresses customer instructions, transparency, retention and deletion.

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Scope and applicability

Personal data protection guidance for public cloud processors

Generally voluntary, it supports outsourcing and security due diligence. It does not automatically replace privacy law compliance or CSAP; confirm the assessment scheme and scope.

Korean certification schemes and international standards are different. A translated guide does not extend a Korean certificate to other countries. Confirm the target market, product classification and current requirements with the relevant body.

Who this is for

  • Public cloud personal data processors
  • SaaS providers handling customer data
  • Teams coordinating subprocessors and processing regions

Documents to prepare

Processing and outsourcing inventory

Identify customer instructions, purposes, regions and subprocessors.

Processing contracts and disclosures

Define outsourcing, notices, return and deletion conditions.

Privacy operating evidence

Retain access, deletion, recovery, disclosure request and incident records.

Preparation process

  1. Confirm processor role and edition

    Check the 2025 edition and service and contract scope.

  2. Operate privacy controls

    Implement processing, disclosure, retention, deletion and transparency controls.

  3. Assess and correct

    Agree the scheme, ISMS integration and maintenance conditions.

Timing

Processing regions, subprocessors, privacy maturity and the chosen assessment scheme determine timing.

Agency fees

Assessment fees

Individual assessment body quotation

Pricing follows service scope, processing regions and the linked management system.

Sources and references ↗

Document automation and management cost KRW 300,000 per month. Expert services and certification body testing or assessment fees are separate. Specify supports preparation; the relevant authority or certification body makes the final decision.

Pricing and certification costs →

Optional expert consulting

Expert review and consulting are optional, separately scoped services. Choose support for ISO/IEC 27018 Public Cloud Privacy based on your team's readiness and the evidence or assessment preparation you need.

  • Confirm institutional testing, assessment and registration fees separately in the contract.
  • Development fixes, clinical studies where applicable, security equipment and infrastructure operations may require separate budgets.
  • Confirm internal staffing, travel, translation, VAT, surveillance and renewal costs in the quotation.

Questions and answers

Which edition and role are covered?

The catalog references the August 2025 edition, focused on public cloud personal data processors.

Is this the same as ISO 27701?

ISO 27701 specifies privacy management system requirements; ISO 27018 focuses on public cloud processor safeguards.

Is a privacy policy enough?

Customer instructions, contracts, subprocessors, deletion, incident response and implementation records are also needed.

Sources and references

Related guides