A CMS (acronym for content management system) is a software application running on the web that allows, with simple screens, the insertion, modification and updating of textual and graphic content of a web page and/or an entire website.

In order to achieve proper functioning of the CMS and secure use, it must be kept up-to-date. The risks arising from failure to update the CMS are many and can be summarised as follows:

• Sudden site crash. If an automatic backup system was not provided, there will be no possibility of restoring the site, which will be lost forever.
• Data and credentials theft, with easily imaginable consequences.
• Defacing of the site, i.e. replacement of the main page with a malicious page created by the attacker.
• Final deletion of the database, resulting in the loss of all site content. If no backups were present, the deletion will be definitive.
• Insertion of unwanted advertising, making surfing annoying and dangerous and running the real risk of seeing one's domain end up on a dreaded blacklist. We talked about blacklisting in this article.