Drupal is one of the most secure Web Content Management systems available today and the credit for this goes to the simple fact that there is a dedicated security team that constantly checks the codebase for any vulnerabilities and provides fixes for any vulnerabilities identified.
As per the Drupal Security team, security release "windows" are every Wednesday for Drupal contributed projects, and one Wednesday a month (usually the third Wednesday) for Drupal core.
Security Updates
Kraftwagen is an Open Source deployment tool that is built entirely on top of Drush. Kraftwagen makes Drupal “easy to use” for developers, who customize Drupal extensively, need staged deployments, and use version control systems to collaborate. It provides a set of commands for 'drush make' based Drupal development workflow.Benefits of using Kraftwagen for security updates
By using Kraftwagen to deploy security updates, the benefits are multifold, which include
I had updated a Drupal site recently and do had faced some issues after successful update of the site. Upgrading a Drupal site is an effective way to make sure that your Drupal site is currently updated with all the latest security updates. Before performing any major changes on your Drupal site, remember to take a complete files and database backup of the site.