ISO 27018 vs ISO 22301
ISO 27018
Code of practice for PII protection in public cloud processors
ISO 22301
International standard for business continuity management systems.
Quick Verdict
ISO 27018 provides cloud-specific PII privacy controls within ISO 27001 audits for CSPs, while ISO 22301 establishes certifiable BCMS for operational resilience across organizations. Companies adopt 27018 for privacy trust in cloud procurement and 22301 to ensure business continuity amid disruptions.
ISO 27018
ISO/IEC 27018:2019 Code of practice for PII in public clouds
Key Features
- Privacy-specific controls extending ISO 27001 for cloud PII processors
- Mandates subprocessor transparency and location disclosures
- Requires prompt breach notifications to PII controllers
- Prohibits PII use for marketing without consent
- Enforces data minimization and secure deletion practices
ISO 22301
ISO 22301:2019 Business continuity management systems Requirements
Key Features
- PDCA cycle for continual BCMS improvement
- Business Impact Analysis (BIA) and risk assessment
- Top management leadership commitment and policy
- Operational planning with testing and exercises
- Annex SL alignment for ISO 27001 integration
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
ISO 27018 Details
What It Is
ISO/IEC 27018:2019 is a code of practice extending ISO 27001 and ISO 27002 specifically for protecting personally identifiable information (PII) in public clouds where providers act as PII processors. It focuses on cloud-specific privacy risks like multi-tenancy and cross-border flows, employing a risk-based approach with ~25-30 additional controls.
Key Components
- Privacy controls in organizational, people, physical, and technological themes of ISO 27001 Annex A
- Principles: consent/choice, purpose limitation, data minimization, transparency, accountability
- Integrated into ISO 27001 ISMS; assessed during its audits, no standalone certification
- Guidance on subprocessors, breach notification, data subject rights support
Why Organizations Use It
- Builds trust and accelerates procurement for CSPs
- Aligns with GDPR Article 28, HIPAA; aids legal compliance
- Reduces security questionnaire friction, favors cyber insurance
- Differentiates in market, signals privacy stewardship
Implementation Overview
- Gap analysis on existing ISMS, update Statement of Applicability
- Enhance policies, contracts, technical safeguards like encryption/logging
- Suits CSPs all sizes; low incremental cost if ISO 27001-certified
- Third-party audits via annual surveillance, 3-year recertification
ISO 22301 Details
What It Is
ISO 22301:2019 is the international standard specifying requirements for a Business Continuity Management System (BCMS). It provides a framework to protect against, reduce likelihood of, respond to, and recover from disruptions. Adopting a risk-based, PDCA (Plan-Do-Check-Act) approach, it ensures resilience for critical products and services.
Key Components
- 10 clauses aligned with Annex SL high-level structure.
- Core elements: context understanding, leadership commitment, BIA and risk assessment, operational controls, performance evaluation, continual improvement.
- No prescriptive controls; flexible for organizational context.
- Certification via accredited bodies, valid 3 years with annual surveillance.
Why Organizations Use It
Enhances resilience, minimizes downtime and financial losses, ensures regulatory compliance (e.g., NIS2 Directive), builds stakeholder trust, provides competitive edges like procurement advantages and reduced insurance premiums.
Implementation Overview
Phased approach: gap analysis, BIA, policy development, training, testing, audits. Applicable to all sizes/sectors globally. Certification involves two-stage audits (6-8 weeks), supported by tools for efficiency.
Frequently Asked Questions
Common questions about ISO 27018 and ISO 22301
ISO 27018 FAQ
ISO 22301 FAQ
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