On April 17th Drupal released security update for its core. This update marked to have a moderate level yet it is highly recommended to update your website right away. Why to update? Because security important and security bridge could cost company lost of money and hours of labor. And one of the major benefits of using Drupal as your content management system is its remarkable high focus on security. Drupal is an open source project, meaning anyone could see the core code and discover security flaws. Once found, these flaws are reported and these fixes as updates posted regularly. Remember to back up Drupal data base or the entire website, or even a server. Remember to put website on a maintenance mode while performing such file work on a website. There are several ways to update Drupal depending on the method of it initial installation. Check Drupal community support pages or contact your system administrator for more help.