This may sound cliche, but ransomeware truly is plaguing the nation. 3 "phone room" busts here where I live in the last month or so, all of which were the "tech support" hot lines that you called into after you've paid the ransom to "fix your PC." sure, there are many different levels of extortion. Some outfits are very upfront i.e. "your PC has been locked..." others are much more subtle and appear to come across as…
Think of this as a natural balance to the ridiculously insecure internet and people's tech culture. If we are all going to live in a world where we use internet and technologies everyday, we should have a minimum of knowledge on how it works and not blindly trust everything.
One other point, it's useless to try stopping these guys, they are selling the software on the blackmarket with source code, the more you catch the more room you give to new criminals and the better breed the virus becomes ...