Web App Security Essentials 🛡️

Introduction to Web Application Security

Web application security is critical to protect user data and system integrity. Common threats include:

• SQL Injection ⚠️
• Cross-Site Scripting (XSS) ⚠️
• Cross-Site Request Forgery (CSRF) ⚠️
• Data Leaks ⚠️

Always prioritize security from the design phase! 🔐

Key Security Practices

1. Input Validation

   • Sanitize user inputs to prevent malicious data injection.
   • Use whitelisting over blacklisting for better control.

2. Authentication & Authorization

   • Implement strong password policies and 2FA.
   • Role-based access control (RBAC) is recommended.

3. Secure Communication

   • Enforce HTTPS to encrypt data in transit.
   • Use TLS 1.2 or higher for secure protocols.

4. Regular Updates

   • Keep dependencies and frameworks up to date.
   • Patch known vulnerabilities promptly.

Tools & Resources

• OWASP Top 10 for common web security risks.
• Use security scanners to detect vulnerabilities.
• Learn about encryption standards.

Stay Safe!

Always test security measures in a development environment before deployment. 🛡️

For deeper insights, check our guide on [security best practices](/en/tutorial_web_app/security/best_practices). 🚀