Start here: read START_HERE.md for the 10–15 minute guided tour and evaluation path.
This repository documents a governance-driven cybersecurity operating system designed to model how a senior security professional thinks, decides, and documents risk.
It is not a collection of tools. It is a collection of judgment.
Choose the path that matches your role:
👉 examples/decision-end-to-end.md A complete, end-to-end example of how a security decision is reasoned, validated, governed, and made audit-ready.
👉 ARCHITECTURE-DECISIONS.md Why this security architecture exists, which trade-offs were made, and which alternatives were explicitly rejected.
👉 SECURITY-ARCHITECTURE-SNAPSHOT.md A one-page explanation of what kind of security system this is — and what kind of professional built it.
This repository is designed to be forked as a template, not studied as a static document.
It provides a replicable, audit-ready framework for modeling how security decisions are made, validated, and defended under scrutiny.
- Clone via “Use this template”
- Adapt scope (cloud, on-prem, hybrid)
- Produce defensible decision evidence, not detections
- Read START_HERE.md
- Read SECURITY-ARCHITECTURE-SNAPSHOT.md
- Review ARCHITECTURE-DECISIONS.md
- Read the end-to-end example: examples/decision-end-to-end.md
- Review one decision in audit-mapping/
- Inspect validation logic in validation/
- Check governance constraints in GOVERNANCE.md
This is not a toolset. It is a governance operating model.
To demonstrate how cybersecurity excellence is achieved through:
- signal selection over data accumulation
- correlation over isolated alerts
- silence by design over alert fatigue
- audit-ready decision making
- A public, compliant portfolio of cybersecurity reasoning
- A transferable operating model aligned with SOC, Audit, and Leadership
- A documentation-first approach to trust and governance
- No real logs
- No real infrastructure
- No copy-paste detection rules
- No organizational secrets
All examples are abstracted, synthetic, and compliance-safe.
- Identity is the primary control plane
- Every alert must be defensible six months later
- Silence is a security decision
- Automation amplifies thinking — it does not replace it
- runbooks/ — enterprise-style operational logic
- detection-strategy/ — hypothesis and correlation models
- soc-alignment/ — triage and escalation reasoning
- audit-ready/ — documentation templates for compliance
- Security leadership (CISO, Head of Security)
- SOC and Detection Engineering
- Risk, Audit, and Compliance stakeholders
Current roadmap: v0.2.0 — Cloud Audit & Adversarial Validation This repository operates under explicit governance principles defined in GOVERNANCE.md.
Maintainer / Original Author: André Luiz Vieira Bonfim Focus: Cloud Security, SIEM, Governance, Identity, Zero Trust