Security Documentation Standards

Purpose

Maintain comprehensive security documentation per Hack23 ISMS requirements.

Required Documents

Current State

• ✅ SECURITY_ARCHITECTURE.md - Implemented security controls

• ✅ THREAT_MODEL.md - STRIDE threat analysis

• ✅ ARCHITECTURE.md - System design with C4 models

• ✅ SECURITY.md - Security policy and vulnerability reporting

Future State

• ✅ FUTURE_SECURITY_ARCHITECTURE.md - Planned security improvements

Document Structure

SECURITY_ARCHITECTURE.md:

Security Architecture

Executive Summary

Security Controls

Network Security

Application Security

Access Control

Data Protection

Monitoring & Detection

Compliance Mapping

ISO 27001:2022

NIST CSF 2.0

CIS Controls v8.1

References

THREAT_MODEL.md:

Threat Model

Asset Inventory

STRIDE Analysis

Spoofing Threats

Tampering Threats

Repudiation Threats

Information Disclosure Threats

Denial of Service Threats

Elevation of Privilege Threats

Risk Assessment

Mitigation Controls

Residual Risks

Quality Standards

• Use C4 diagrams (Context, Container, Component)

• Include Mermaid diagrams for complex workflows

• Map to ISO 27001/NIST CSF/CIS Controls

• Version control metadata (version, date, owner)

• Classification marking (Public, Internal, Confidential)

References

• ISMS-PUBLIC: https://github.com/Hack23/ISMS-PUBLIC

• Secure Development Policy: https://github.com/Hack23/ISMS-PUBLIC/blob/main/Secure_Development_Policy.md