93% of phishing emails are now ransomware
csoonline.com
csoonline.com
It should be possible to follow the money. Bitcoin is only semi-anonymous. If you have a large number of transactions to track, it should be possible to figure out where the money is going.
Wars have and will be fought over economic sabotage, with "non-violent offenders" inciting them. At some point it is possible that cybercrime could become enough of a problem that it would have dramatic effects on a nation's economy, then it's only a small step away from said country taking matters in to it's own hands.
Not to mention, it only takes a single mistake.
There was recently a case of Mac ransomware (KeRanger) but it was not via a phishing email. It was considerably harder to distribute because Mac users can't simply run unsigned software downloaded from the internet (by default). The attacker got control of an app developer signing certificate and hijacked their software update to deliver the ransomware. It was halted as soon as the the certificate was revoked.
You don't want crypto-ransomware able to get to your keys to the backups.
Multiple "experts" have walked through the door and demanded they move all backups to various cloud based services. Trying to tell people that some great solutions aren't always great for every scenario is like talking to a wall.