Yes you should check more often or at least subscribe to security alerts from the software vendors whose software you run.
An out-of-band security patch is typically something you would want to get patched immediately. Microsoft has something called patch tuesdays where they issue their hotfixes once per month. But when they release a hotfix that doesn’t come out on the scheduled patch Tuesday it means it’s a real threat and it needs to get patched ASAP.
Thanks for the info. I’ll go over to microsoft and check out the hotfix email notice.