Security Best Practices

Atomic decision guides for building secure web applications across all languages and frameworks.

I need to...

I need to...	Guide
Understand the security mindset and defense principles	Security Mindset Overview
Know the most critical web vulnerabilities	OWASP Top 10
Validate user input safely	Input Validation
Escape output correctly for different contexts	Output Encoding and Escaping
Prevent cross-site scripting attacks	Cross-Site Scripting (XSS)
Implement XSS prevention patterns	XSS Prevention Patterns
Prevent SQL injection	SQL Injection Prevention
Protect against CSRF attacks	CSRF Prevention
Implement secure authentication	Authentication Best Practices
Design proper authorization systems	Authorization and Access Control
Protect sensitive data	Sensitive Data Protection
Configure security headers	Security Headers
Secure my APIs	API Security
Handle file uploads safely	File Upload Security
Manage dependencies securely	Dependency Security
Implement secure logging	Logging and Monitoring
Understand cryptography basics	Cryptography Basics
Integrate security into development	Secure Development Lifecycle
Avoid common security mistakes	Common Security Anti-Patterns
Quick security checklist	Security Checklist
Find security resources and tools	Code Reference Map
Find sources and maintenance info	Sources and Maintenance Manifest