CageFS: The virtual file system that Cloudlinux developed to solve many security vulnerabilities. It aims to prevent access to all accounts on the server due to a security vulnerability that may arise from any site, by ensuring that each user on the server (that is, the website) broadcasts within its own "cage". Cagefs is also known by its former name SecureLVE. The most important difference from other "jail" applications; It is the simplest system to use, produced entirely for the webhosting field.
In a system configured with CageFS under CloudLinux, each user has their own tools and everything runs completely isolated from other users. No user can see, access or change files or user accounts/passwords outside their own virtual file system. Likewise, it cannot read config files on the server. The best part is that none of your users will feel restricted and will not need to make any changes to their existing websites / scripts.
Note: CageFS is actively running on our servers.