This is a cherry picking responses by Tooit for you, based in the recently published in Ponyfoo.com site.
Drush is a command line shell and Unix scripting interface for Drupal. Drush core ships with lots of useful commands for interacting with code like modules/themes/profiles. Similarly, it runs update.php, executes sql queries and DB migrations, and misc utilities like run cron or clear cache. Drush can be extended by 3rd party command files.
Drupal Smart IP identify visitor’s geographical location (longitude/latitude), country, region, city and postal code based on the IP address of the user. These information will be stored at Drupal session variable.
Over the past few days, hackers have compromised at least 12 million websites that have been using Drupal software. In a public service announcement Drupal said attackers had taken advantage of a bug in its widely used software.