Canonical is always looking for new ways to make its Ubuntu operating system more secure and reliable. It’s a very rare occasion that I run into a single issue with a Ubuntu operating system (either on the desktop or the server).
Depending on which version of Ubuntu you are using, you may or may not have Ubuntu Pro installed.
If you find that Ubuntu Pro isn’t installed, you can install it with the command: sudo apt-get install ubuntu-advantage-tools=27.11.2~$(lsb_release -rs).1
With your system fully attached to Ubuntu Pro, you can check to see if there are any security patches available for your system by issuing the command: apt list --upgradable | grep apps-security