Someone very close to me who is computer adept was tricked into downloading and running a sneaky Flash installer that actually installed malware. This exercise was a good time to review my checklist for finding and fixing this situation. I was pleasantly surprised to discover some new useful tools and updated my checklist for 2018.
Don’t think you are immune because you know more than others. If your computer is connected to the internet and you use a web browser it can happen to you, especially if you use Outlook (aka Lookout!).