WordPress, Drupal and Joomla make up the big-three in content management systems, collectively they form the three most popular and widely-used CMS. Security wise, CMS are a goldmine for hackers, as they provide the building blocks for a large portion of all the world-wide web. The popularity of these systems means they are a prime target for hackers. Because of this, the systems have been developed over time to be extremely secure. All services are free and open-source projects that use extensions and add-ons to supplement core code to allow for additional features.…