Mojave Security Update - Don't...
Tony Still
There are security updates available from Apple as of 24th September. These are for both Catalina and Mojave.The Catalina update seems fine (I have installed it here) but, according to Howard Oakley, the Mojave one has problems.
If you're still on Mojave, I suggest you wait a few days before installing the update: Apple may well pull it and release a "better" version.