Security Hardening Tools

About Security Hardening

Security hardening is the process of securing a system by reducing its attack surface and implementing security best practices. This collection of tools helps developers and security professionals analyze, test, and improve application security.

Key Security Principles

Defense in Depth

Implement multiple layers of security controls. If one layer fails, others continue to provide protection.

Least Privilege

Grant only the minimum permissions necessary for users and systems to perform their functions.

Secure by Default

Configure systems with security in mind from the start, rather than adding security as an afterthought.

Fail Securely

When systems fail, they should fail in a secure manner that doesn't expose sensitive information or create vulnerabilities.

Common Security Headers

Password Security Best Practices

• Use at least 12 characters (16+ recommended)
• Mix uppercase, lowercase, numbers, and special characters
• Avoid common words and patterns
• Use unique passwords for each service
• Enable multi-factor authentication (MFA)
• Use a password manager
• Never share passwords or store them in plain text

API Security

• Always use HTTPS/TLS for API communication
• Implement proper authentication (OAuth 2.0, JWT)
• Use rate limiting to prevent abuse
• Validate and sanitize all input
• Implement proper CORS policies
• Never expose sensitive data in URLs
• Use API versioning
• Implement proper error handling (don't leak system information)