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Security by Design - Theory of Everything

A unified model for thinking about, designing and operating security in software development.

SbD–ToE connects European regulations, technical standards, maturity frameworks, real threats and software engineering in a prescriptive, reusable and risk-proportional manual.

Security by DesignTheory of EverythingTop-DownStandards & RegulationBottom-UpThreats & IncidentsEngineeringExecution & Lifecycle

SbD–ToE is the core where standards, threats and engineering converge. From this centre, each chapter of the manual unfolds the vision into concrete practices and controls.

📘 SbD–ToE Manual

Chapters 01–14. The main body of the manual, organised by technical theme across the lifecycle.

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🏛️ Normative cross-check

How SbD–ToE responds, regulation by regulation, to NIS2, DORA, CRA, the AI Act, the GDPR and the CSA: what it covers, the declared gaps and what is out of scope.

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