Security is rarely defeated by clever hackers — it is defeated by skipped basics. Cover the fundamentals first.
The essentials
Force HTTPS everywhere, keep software patched, use strong unique credentials with two-factor authentication, and take automated daily backups you have actually tested restoring.
Defence in depth
Add a web application firewall, validate and sanitise all input, protect forms with CSRF tokens, and limit who can access what. Layers beat any single wall.
Security is a habit, not a product — review it quarterly.
