Security Assessment Document Template

A template for security architecture documentation including threat modelling, security controls, compliance, and risk assessment.

January 23, 2026

The Security Assessment Document template provides a structure for documenting security architecture and assessments. It covers threat modelling, security controls, compliance requirements, and risk mitigation.

Template Sections

This template includes eight sections covering security architecture and operations.

Security Overview

Security objectives, trust boundaries, and guiding security principles.

Threat Model

Data flow diagrams, threat analysis using STRIDE, and threat categorisation.

Security Controls

Control ownership, implementation status, and control effectiveness.

Authentication and Authorisation

Identity models, authentication methods, and authorisation policies.

Data Protection

Data classification, encryption standards, and data handling procedures.

Security Risk Assessment

Risk register, attack scenarios, and risk mitigation strategies.

Compliance Mapping

Regulatory requirements, compliance evidence, and audit trail.

Security Operations

Security monitoring, incident detection, and response procedures.

Section Details

Section Requirements

Required and optional sections for security assessment documents
Section	Required	Primary Block Types
Security Overview	Yes	Rich Text, Diagram, Principle
Threat Model	Yes	Diagram, Risk, Rich Text
Security Controls	Yes	Component Responsibility, NFR, Constraint
Authentication and Authorisation	Yes	Schema, NFR, Diagram
Data Protection	Yes	Data Lifecycle, Constraint, NFR
Security Risk Assessment	Yes	Risk Register, Failure Scenario, Scenario
Compliance Mapping	Conditional	Constraint, Rich Text, Link
Security Operations	Recommended	Operational Note, Failure Scenario, Rich Text

Getting Started

Architecture Documentation for Security Architects

Use security principles, NFRs, constraints, risk registers, and failure scenarios to document security architecture and compliance.

Risk Blocks

Reference for the 4 risk and scenarios category blocks: Risk, Risk Register, Failure Scenario, and Scenario / What-If.

How to Document Risks and NFRs

Step-by-step guide to documenting risks, non-functional requirements, constraints, and assumptions in NeoArc Studio.