Security best practices OWASP Top 10

Secure your applications against common vulnerabilities. OWASP Top 10: 1. Injection (SQL, NoSQL, OS commands - use parameterized queries). 2. Broken Authentication (implement MFA, secure password storage with bcrypt). 3. Sensitive Data Exposure (encrypt data at rest and in transit, HTTPS). 4. XML External Entities (disable XXE in parsers). 5. Broken Access Control (enforce authorization checks). 6. Security Misconfiguration (disable debug mode, update dependencies). 7. XSS (sanitize user input, use CSP headers). 8. Insecure Deserialization (validate serialized data). 9. Using Components with Known Vulnerabilities (dependency scanning). 10. Insufficient Logging (log security events). Use security headers, rate limiting.