And they still are "everywhere." It's just that detection and blocking mechanisms have become so very much more efficient and sophisticated.
I need to remember when doing client visits to take occasional looks at the various security suite logs just to get a sense of how much is actually being blocked these days. It does no good to look at my own, because even if you count all of the "Wild West" days, I can count on less than one hand the number of times that I, personally, had any sort of infection.
And that's the killer, for me, is that it is just so darned simple to avoid infection by following just a few, very simple, rules. Most attacks, then and now, succeed only because the end user does something that, quite literally, opens the door and invites them in. And these days they often have warnings before doing so that they might want to think twice, but don't. You really can't cure stupid.