Security Is Not Optional
Every developer knows about SQL injection and XSS. But there are many other vulnerabilities that are often ignored until the first incident. We have compiled a checklist of 15 items.
1. CSRF Protection on Every Form
A CSRF token must be on every form that modifies data — without exceptions.
2. Content Security Policy (CSP)
Even a basic CSP policy significantly reduces XSS risk.
3. Rate Limiting on API and Login Forms
Implement rate limiting: for login — maximum 5 attempts per 15 minutes from one IP.
4. Secure Cookie Settings
Every cookie with sensitive data should have HttpOnly, Secure, and SameSite flags.
5. Server-Side Validation — Always
Never trust data from the client, even if it passed JavaScript validation.
6. Parameterized Queries — No Exceptions
Use prepared statements — the only reliable protection against SQL injection.
7-10. HTTPS, Security Headers, Password Hashing, Logging
These items are as important as they are often forgotten.
11-15. File Sanitization, Enumeration Attacks, Dependencies, Secrets, Backups
Each of these items can save your project from catastrophe.
Conclusion
Security is a process, not a one-time action. Go through this checklist regularly.