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---
name: stride-analysis-patterns
description: Apply STRIDE methodology to systematically identify threats. Use when analyzing system security, conducting threat modeling sessions, or creating security documentation.
---
# STRIDE Analysis Patterns
Systematic threat identification using the STRIDE methodology.
## When to Use This Skill
- Starting new threat modeling sessions
- Analyzing existing system architecture
- Reviewing security design decisions
- Creating threat documentation
- Training teams on threat identification
- Compliance and audit preparation
## Core Concepts
### 1. STRIDE Categories
```
S - Spoofing → Authentication threats
T - Tampering → Integrity threats
R - Repudiation → Non-repudiation threats
I - Information → Confidentiality threats
Disclosure
D - Denial of → Availability threats
Service
E - Elevation of → Authorization threats
Privilege
```
### 2. Threat Analysis Matrix
| Category | Question | Control Family |
| ------------------- | ----------------------------------------- | -------------- |
| **Spoofing** | Can attacker pretend to be someone else? | Authentication |
| **Tampering** | Can attacker modify data in transit/rest? | Integrity |
| **Repudiation** | Can attacker deny actions? | Logging/Audit |
| **Info Disclosure** | Can attacker access unauthorized data? | Encryption |
| **DoS** | Can attacker disrupt availability? | Rate limiting |
| **Elevation** | Can attacker gain higher privileges? | Authorization |
## Templates and detailed worked examples
Full template library lives in `references/details.md`. Read that file when you need concrete templates for this skill.
## Best Practices
### Do's
- **Involve stakeholders** - Security, dev, and ops perspectives
- **Be systematic** - Cover all STRIDE categories
- **Prioritize realistically** - Focus on high-impact threats
- **Update regularly** - Threat models are living documents
- **Use visual aids** - DFDs help communication
### Don'ts
- **Don't skip categories** - Each reveals different threats
- **Don't assume security** - Question every component
- **Don't work in isolation** - Collaborative modeling is better
- **Don't ignore low-probability** - High-impact threats matter
- **Don't stop at identification** - Follow through with mitigations
