# Security Audit

> <!-- Source: claude-code-templates/security/security-audit.md -->

- Skill: `henriquescastilho/security-audit` (Agent Skill)
- Install (CLI): `npx skillmds@latest add henriquescastilho/security-audit`
- Raw SKILL.md: https://api.skillmd.com/api/skills/henriquescastilho/security-audit/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: henriquescastilho (https://skillmd.com/u/henriquescastilho)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/henriquescastilho/security-audit

---

<!-- Source: claude-code-templates/security/security-audit.md -->
---
allowed-tools: Read, Bash, Grep, Glob
argument-hint: [focus-area] | --full
description: Perform comprehensive security assessment and vulnerability analysis
---

# Security Audit

Perform comprehensive security assessment: $ARGUMENTS

## Current Environment

- Dependency scan: !`npm audit --audit-level=moderate 2>/dev/null || pip check 2>/dev/null || echo "No package manager detected"`
- Environment files: @.env* (if exists)
- Security config: @.github/workflows/security.yml or @security/ (if exists)
- Recent commits: !`git log --oneline --grep="security\|fix" -10`

## Task

Perform systematic security audit following these steps:

1. **Environment Setup**
   - Identify the technology stack and framework
   - Check for existing security tools and configurations
   - Review deployment and infrastructure setup

2. **Dependency Security**
   - Scan all dependencies for known vulnerabilities
   - Check for outdated packages with security issues
   - Review dependency sources and integrity
   - Use appropriate tools: `npm audit`, `pip check`, `cargo audit`, etc.

3. **Authentication & Authorization**
   - Review authentication mechanisms and implementation
   - Check for proper session management
   - Verify authorization controls and access restrictions
   - Examine password policies and storage

4. **Input Validation & Sanitization**
   - Check all user input validation and sanitization
   - Look for SQL injection vulnerabilities
   - Identify potential XSS (Cross-Site Scripting) issues
   - Review file upload security and validation

5. **Data Protection**
   - Identify sensitive data handling practices
   - Check encryption implementation for data at rest and in transit
   - Review data masking and anonymization practices
   - Verify secure communication protocols (HTTPS, TLS)

6. **Secrets Management**
   - Scan for hardcoded secrets, API keys, and passwords
   - Check for proper secrets management practices
   - Review environment variable security
   - Identify exposed configuration files

7. **Error Handling & Logging**
   - Review error messages for information disclosure
   - Check logging practices for security events
   - Verify sensitive data is not logged
   - Assess error handling robustness

8. **Infrastructure Security**
   - Review containerization security (Docker, etc.)
   - Check CI/CD pipeline security
   - Examine cloud configuration and permissions
   - Assess network security configurations

9. **Security Headers & CORS**
   - Check security headers implementation
   - Review CORS configuration
   - Verify CSP (Content Security Policy) settings
   - Examine cookie security attributes

10. **Reporting**
    - Document all findings with severity levels (Critical, High, Medium, Low)
    - Provide specific remediation steps for each issue
    - Include code examples and file references
    - Create an executive summary with key recommendations

Use automated security scanning tools when available and provide manual review for complex security patterns.