Great information. Greek Geek has a hub about this scam (it dates back a few years - the scam has been around for a while). But the crackdown sounds like a newer effort to tackle them. I was called by one of these jerks just a few days ago - I even recorded the conversation toward the very end of it, which means I got only a small portion of it.
You might want to post this on GG's hub about the topic. It's a helpful update.
I feel badly for those who fall for the scam. I know they're simply trying to protect their computers. When the scammer called me, I immediately recognized it was a con job (but then, I research and write about those things). I asked him what his name was, and in a very thick Indian accent, he said, Jerry Smith. I told him he sure sounded like a 'Smith.'
BTW - although I still have one old Windows laptop in the house, which is rarely turned on, I'm completely on Mac systems now.