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🚀 How Do You Secure a Node.js Application?

Security is critical in Node.js applications to prevent attacks like XSS, SQL injection, CSRF, and DDoS. Follow best practices to keep your app safe! 🔒

🔥 Best Security Practices for Node.js:
✅ Use HTTPS – Encrypt data in transit with SSL/TLS certificates.
✅ Validate & Sanitize User Input – Prevent SQL injection & XSS with libraries like validator.js.
✅ Implement Authentication & Authorization – Use JWT, OAuth, or Passport.js for secure access control.
✅ Enable Helmet.js – Protect against common web vulnerabilities by setting security headers.
✅ Use Rate Limiting & Throttling – Prevent DDoS attacks with express-rate-limit or Redis-based limits.
✅ Store Secrets Securely – Use .env files, AWS Secrets Manager, or HashiCorp Vault (avoid hardcoding).
✅ Keep Dependencies Updated – Regularly update npm packages and check for vulnerabilities with npm audit.
✅ Prevent NoSQL Injection – Use parameterized queries in MongoDB and SQL databases.
✅ Run Apps in Secure Environments – Use Docker, Kubernetes, or cloud security best practices.

💡 A secure Node.js app protects data, prevents attacks, and ensures user trust! 🎉

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