Hallo
Lets think about the subject and the audience.
IT security is sooo important. That’s a fact. It is also a massive subject, really huge, bigger than big! 
If this were the “Arch-linux” forum I’d say why not. However, Ubuntu-Mate has a lot of appeal to those starting off with Linux. The “non-tech” people starting off on Ubuntu-Mate will probably be frightened and confused if they started to read in a “security section” (as the subject gets quite technical quite quickly).
“In our distribution we trust” and ours is (a) based on Ubuntu, which shuts off many security problems “out-of-the-box”, and (b) with the Ubuntu-Mate developers we have a team of really committed people who put spadefulls of work into polishing off the rest and keeping us upto date.
I’d go with Wolfman on this, most people would be best served with a beginner’s guide to the essentials of security. I’m used to training people in a reasonably large organisation and you have to be realistic - you have to start “education” at a level low enough to pick up the “weakest link”. Afterwards you’ve a solid foundation upon which you can build.
Perhapse this could be a subject for a chapter in the “Ubuntu-Mate Beginner’s Guide” we were discussing last year (https://ubuntu-mate.community/t/thoughts-on-a-um-manual/2104).