ISO 27017
International code of practice for cloud security controls
Basel III
Global framework for bank capital, leverage, and liquidity standards.
Quick Verdict
ISO 27017 provides cloud security guidance for all industries via ISO 27001 audits, while Basel III mandates capital, leverage, and liquidity rules for banks. Organizations adopt 27017 for cloud trust and Basel III for regulatory compliance and resilience.
ISO 27017
ISO/IEC 27017:2015 Code of practice for cloud security controls
Key Features
- Clarifies shared responsibilities between CSPs and CSCs
- Introduces seven cloud-specific security controls
- Provides guidance for 37 ISO 27002 cloud adaptations
- Addresses multi-tenancy and virtual machine isolation
- Enables customer monitoring of cloud service activities
Basel III
Basel III: Finalising post-crisis reforms
Key Features
- Strengthened CET1 capital requirements and buffers
- Non-risk-based leverage ratio minimum 3%
- Liquidity Coverage Ratio for 30-day stress
- Net Stable Funding Ratio for one-year horizon
- Output floor limiting internal model benefits
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
ISO 27017 Details
What It Is
ISO/IEC 27017:2015 is a code of practice extending ISO/IEC 27002 with cloud-specific information security controls. It provides implementation guidance for cloud services, focusing on shared responsibilities in public, private, and hybrid environments. Its risk-based approach integrates into ISO 27001 ISMS.
Key Components
- Guidance on 37 ISO 27002 controls adapted for cloud.
- Seven additional CLD cloud-specific controls (e.g., multi-tenancy segregation, VM hardening).
- Dual perspectives for CSPs and CSCs.
- Assessed within ISO 27001 audits, no standalone certification.
Why Organizations Use It
Enhances cloud risk management, clarifies responsibilities, supports regulatory alignment (e.g., GDPR). Builds customer trust, aids procurement, differentiates CSPs. Reduces incidents from misconfigurations and shared model gaps.
Implementation Overview
Integrate into existing ISO 27001 ISMS via risk assessment, control mapping, and documentation updates. Applies to CSPs, CSCs across industries; requires cloud maturity. Joint audits with ISO 27001 typical, 9-12 months timeline.
Basel III Details
What It Is
Basel III is the global regulatory framework developed by the Basel Committee on Banking Supervision (BCBS) post-2007-09 financial crisis. It sets prudential standards for banks to enhance resilience through improved capital quality and quantity, leverage constraints, and liquidity requirements. The risk-based approach combines minimum ratios with buffers and non-risk metrics.
Key Components
- **Three PillarsPillar 1 (capital, leverage, LCR, NSFR), Pillar 2 (supervisory review/ICAAP), Pillar 3 (disclosures).
- Core elements: CET1 4.5%, Tier 1 6%, Total Capital 8%; 2.5% conservation buffer; 3% leverage ratio; LCR/NSFR ≥100%.
- Built on revised RWA methods, output floor (72.5%), and standardized approaches.
- Compliance via national implementation, no central certification.
Why Organizations Use It
Banks adopt for regulatory compliance, as BCBS standards become binding via domestic laws. Benefits include crisis resilience, reduced leverage risks, better funding stability. Enhances investor trust, avoids penalties, and supports strategic balance-sheet optimization amid jurisdictional variations.
Implementation Overview
Phased enterprise transformation: gap analysis, data/system upgrades, model validation, training. Applies to internationally active banks globally; involves PMO governance, QIS, parallel runs. No formal certification; audited via supervisory reviews and Pillar 3 reporting.
Key Differences
| Aspect | ISO 27017 | Basel III |
|---|---|---|
| Scope | Cloud-specific information security controls | Bank capital, leverage, liquidity requirements |
| Industry | All industries using cloud services globally | Banking and financial institutions globally |
| Nature | Voluntary code of practice, ISO 27001 extension | Mandatory prudential regulatory framework |
| Testing | ISO 27001 audits include 27017 controls | Continuous supervisory review, stress testing |
| Penalties | Loss of certification, no legal penalties | Fines, asset caps, business restrictions |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about ISO 27017 and Basel III
ISO 27017 FAQ
Basel III FAQ
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