Website security essentials?
- HTTPS everywhere and security headers
- Keep software updated — frameworks, plugins, servers
- Strong authentication: MFA for admins, no shared accounts
- Least privilege: people and services get only the access they need
- Validate all input on the server; protect against SQL injection and XSS
- Secrets in environment variables, never in code
- WAF & DDoS protection (Cloudflare)
- Backups you've tested restoring
- Logs and alerts for suspicious activity