"There are lots of CMSes and even ones that take security seriously and run their own pen-testing."
Please do list the free ones of which you are aware that are not Wordpress, Drupal or Joomla and which can reasonably described as "major".
"There are lots of CMSes and even ones that take security seriously and run their own pen-testing."
Please do list the free ones of which you are aware that are not Wordpress, Drupal or Joomla and which can reasonably described as "major".