ISO 27018
Code of practice for PII protection in public cloud processors.
U.S. SEC Cybersecurity Rules
U.S. SEC rules mandating cybersecurity incident and governance disclosures
Quick Verdict
ISO 27018 provides voluntary cloud PII processor controls globally, while U.S. SEC rules mandate rapid incident disclosures and governance reporting for public companies. Processors adopt ISO for certification; registrants comply to avoid SEC penalties and inform investors.
ISO 27018
ISO/IEC 27018:2025 Code of practice for PII in public clouds
Key Features
- Protects PII specifically for public cloud processors
- Mandates sub-processor transparency and equivalent obligations
- Requires prompt breach notification to controllers
- Enforces secure PII deletion and return on termination
- Extends ISO 27002 with cloud privacy implementation guidance
U.S. SEC Cybersecurity Rules
Cybersecurity Risk Management, Strategy, Governance, and Incident Disclosure
Key Features
- Four-business-day material incident disclosure via Form 8-K Item 1.05
- Annual cybersecurity risk management and governance in Regulation S-K Item 106
- Inline XBRL tagging for machine-readable disclosures
- Board oversight and management expertise disclosures
- Third-party cybersecurity risk oversight processes
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
ISO 27018 Details
What It Is
ISO/IEC 27018:2025 is a code of practice extending ISO/IEC 27002 for protecting personally identifiable information (PII) in public clouds where providers act as PII processors. Its primary scope targets cloud service providers handling customer PII under contract, using a risk-based approach layered on an ISO 27001 ISMS.
Key Components
- Core themes: consent/purpose limitation, transparency, data minimization, sub-processor management, logging/auditability, breach notification, secure deletion.
- Aligns with ISO/IEC 29100 privacy principles; adds ~25-30 cloud-PII controls to 93 ISO 27002 controls.
- Certification via ISO 27001 audits with ISO 27018 extensions; three-year validity with annual surveillance.
Why Organizations Use It
- Meets processor obligations under GDPR-like laws; reduces procurement friction via audited transparency.
- Enhances risk management for multi-tenant clouds; builds customer trust in PII handling.
- Competitive edge for SaaS/cloud vendors; supports due diligence and contracts.
Implementation Overview
- Conduct gap analysis on existing ISO 27001 ISMS; update SoA, policies, controls.
- Applies to cloud PII processors of all sizes; requires GRC tools, cloud monitoring.
- External audits by accredited bodies; phased upgrades for 2025 edition.
U.S. SEC Cybersecurity Rules Details
What It Is
U.S. SEC Cybersecurity Rules (Release No. 33-11216) are federal regulations amending Regulation S-K and Forms 8-K/10-K. They mandate standardized disclosures for public companies on cybersecurity incidents, risk management, strategy, and governance. The approach is materiality-based, aligning with securities law principles without bright-line thresholds.
Key Components
- **Form 8-K Item 1.05Four-business-day reporting of material incidents.
- **Regulation S-K Item 106Annual disclosures on processes, impacts, board oversight, and management roles.
- Inline XBRL tagging for comparability.
- Applies to all Exchange Act registrants; no certification but ties to disclosure controls.
Why Organizations Use It
Public companies comply to meet legal obligations, protect investors via timely information, enhance capital market efficiency, and reduce enforcement risks like fines seen in Yahoo/Meta cases. Builds trust, integrates cyber into ERM, and signals governance maturity.
Implementation Overview
Cross-functional gap analysis, playbook development, process integration with IRP/DCP. Applies to domestic/foreign issuers; phased compliance (Dec 2023+). No external certification; SEC exams/enforcement verify.
Key Differences
| Aspect | ISO 27018 | U.S. SEC Cybersecurity Rules |
|---|---|---|
| Scope | PII protection in public cloud processors | Public company cyber incident/governance disclosures |
| Industry | Cloud/SaaS providers processing PII globally | All SEC registrants, primarily U.S. public companies |
| Nature | Voluntary international code of practice | Mandatory SEC reporting regulation |
| Testing | ISO 27001 audits with 27018 controls | Internal disclosure controls, SEC review |
| Penalties | Loss of certification, no legal fines | SEC enforcement, civil penalties, injunctions |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about ISO 27018 and U.S. SEC Cybersecurity Rules
ISO 27018 FAQ
U.S. SEC Cybersecurity Rules FAQ
You Might also be Interested in These Articles...

Image this: What if GDPR would have NOT been implemented by the EU
What if the EU never implemented GDPR? Explore this hypothetical: consumer data protection in Dec 2025, key differences, pros/cons for users & companies. Read t

Top 5 Unseen Complexities Modern Compliance Software Effortlessly Manages
Uncover top 5 unseen complexities modern compliance software manages effortlessly—from sensitive data mapping to real-time regulatory shifts. Automate audits, i

Measuring NIST CSF 2.0 Success: KPIs, Dashboards, and Continuous Improvement Using Tiers & Profiles
Transform NIST CSF 2.0 into quantifiable success: Define board-ready KPIs for Functions, build Profile dashboards, track Tier progression. Prove ROI amid cyber
Run Maturity Assessments with GRADUM
Transform your compliance journey with our AI-powered assessment platform
Assess your organization's maturity across multiple standards and regulations including ISO 27001, DORA, NIS2, NIST, GDPR, and hundreds more. Get actionable insights and track your progress with collaborative, AI-powered evaluations.
Check out these other Gradum.io Standards Comparison Pages
RoHS vs COBIT
Discover RoHS vs COBIT: Contrast EU's hazardous substances directive for EEE compliance with ISACA's IT governance framework. Unlock strategies for risk management, exemptions & audits. Compare now!
GDPR vs GMP
GDPR vs GMP: EU data privacy gold standard meets pharma manufacturing rules. Uncover key differences, compliance tips, fines up to 4% turnover, and strategies for seamless operations. Dive in!
ISO 27001 vs ISO 37301
Compare ISO 27001 vs ISO 37301: InfoSec mastery vs full compliance systems. Uncover differences, benefits, risks & implementation guide to choose wisely. Boost resilience now!