Clickjacking
https://www.drupal.org/project/seckit
https://www.drupal.org/project/frameprevention
http://enginx.com/blog/prevent-clickjacking-drupal-apache-web-

applications/

Framebusting code
https://www.drupal.org/project/seckit
https://www.drupal.org/project/frameprevention

SSL and certificates

Others
https://www.drupal.org/project/flood_control
http://www.luciuswebsystems.nl/blog/7-security-modules-drupal-you-should…