Changed
Checklist
- DNS settings
- Email configuration
- Error messages displayed
- Site/admin emails
- Server hardening
- Server monitoring
- Site logging
- Bot traffic filtering
- DDOS protection
- Form/comment spam
- Uptime monitoring
Modules
https://www.drupal.org/project/security_review
https://www.drupal.org/project/crowdsec
https://www.drupal.org/project/monolog
https://www.drupal.org/project/raven
https://www.drupal.org/project/turnstile
http://www.drupal.org/project/honeypot
https://www.drupal.org/project/seckit
https://www.drupal.org/project/antibot
https://www.drupal.org/project/encrypt