Article:
https://blog.malwarebytes.org/intelligence/2013/10/cryptolocker-ransomware-what-you-need-to-know/
I never heard of this stuff before today when I went to pick up some ink from my computer guy.
Per his instructions I went to Costco and picked up a one terabyte USB back up drive for $64.00 (on sale till the fourth of this month).
Key to using the back up is opening up some files first to make sure they are not encrypted. If they are and you back up, you contaminate and encrypt your back up copies, which is a bad thing.
Maybe you cloud guys don't wory so much, was also told about copy.com.
Tell me what you know, I'm still learing about this. I cannot afford to lose all my data by encryption.
I was told that if you pay the randsome, they don't unlock you anyway.
Beware of phony FedEx and UPS tracking emails, that is how they first got around.