Security Framework

The Sovereign Defensibility Framework

✎ Kieran Upadrasta 📅 2026-01-15 🎓 CISSP, CISM, CRISC, CCSP

The Sovereign Defensibility Framework represents a comprehensive, integrated approach to enterprise cyber governance that goes beyond compliance checkbox exercises to establish genuine defensibility — the demonstrable capability to prevent, detect, respond to, and recover from cyber events while maintaining regulatory compliance and stakeholder confidence. This full framework document covers the complete architecture: strategic governance layer (board oversight, risk appetite, regulatory mapping), operational control layer (security operations, incident response, vulnerability management), technical architecture layer (zero trust, identity governance, data protection), and assurance layer (audit, testing, continuous monitoring). The framework is designed to be adopted as a whole or implemented incrementally through defined maturity levels, with clear success metrics at each stage.

  1. 01Framework Philosophy and Architecture
  2. 02Strategic Governance Layer
  3. 03Operational Control Layer
  4. 04Technical Architecture Layer
  5. 05Assurance and Testing Layer
  6. 06Regulatory Compliance Integration
  7. 07Maturity Model and Assessment
  8. 08Implementation Roadmap
  9. 09Success Metrics and KPIs
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Kieran Upadrasta

CISO & Strategic Cyber Consultant · CISSP, CISM, CRISC, CCSP

27 years securing financial services · Big 4 pedigree (Deloitte, PwC, EY, KPMG) · Zero breaches managing £500B+ in assets

https://www.kieransky.co.uk · LinkedIn