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security

Guide web application security with OWASP Top 10 prevention and secure coding practices.

Updated Aug 23, 2026
Search Tags:#security#authentication#owasp#input-validation#web-security#vulnerability-prevention#security-headers
One-click install
npx skills add https://github.com/lunaticwithaduck/majstorbg --skill security-lunaticwithaduck
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: security
Source: https://github.com/lunaticwithaduck/majstorbg/tree/main/packages/.claude/skills/security
Command: npx skills add https://github.com/lunaticwithaduck/majstorbg --skill security-lunaticwithaduck

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Web security knowledge and best practices for securing modern applications, helping teams prevent common vulnerabilities and misconfigurations.

Core Features & Use Cases

  • OWASP Top 10 prevention guidance and secure coding patterns
  • Input validation and sanitization across data boundaries
  • Authentication hardening, password handling, and session security
  • Security headers, CSP, and secure defaults
  • Dependency auditing, secure configuration, and security audits

Quick Start

Review the OWASP Top 10 guidelines and implement the recommended mitigations in your web application.

Frequently Asked Questions about security

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I prevent OWASP Top 10 vulnerabilities in my web application?▼

Web security vulnerabilities are prevented by following OWASP Top 10 guidelines, implementing strong input validation, and hardening authentication. This provides comprehensive prevention guidance to secure modern applications against common threats.

What's the best way to implement input validation and sanitization across data boundaries?▼

Input validation and sanitization across data boundaries is implemented using secure coding patterns that filter untrusted data. This prevents common web security vulnerabilities by ensuring data integrity before processing within modern applications.

How do I configure security headers and CSP for secure web app defaults?▼

Security headers and Content Security Policy (CSP) are configured by applying secure defaults within your web application framework. This strengthens web security by mitigating cross-site scripting and data injection attacks.

Does this security guidance apply to any specific web frameworks?▼

This security guidance is applicable to developers and security engineers building web apps across frameworks. It provides framework-agnostic secure coding practices for authentication hardening, rate limiting, and dependency auditing.

How does authentication hardening improve password handling and session security?▼

Authentication hardening improves password handling and session security by enforcing secure coding practices and robust session management. This prevents unauthorized access and mitigates common web security vulnerabilities related to weak credentials.

Why do I need dependency auditing for vulnerability prevention?▼

Dependency auditing is needed for vulnerability prevention to identify and mitigate risks from outdated or compromised third-party libraries. This ensures secure configuration and maintains web security hygiene across modern applications.

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