Take a look at this post…
I don’t always want to link to hashtalk, but this is a good one to learn a lesson from. It appears that this user had his wallet keys on the main hard drive of his PC that got hit with the crypto blocker ransomware.
Please!!! Keep you wallet keys safe in an offline, off the computer, storage. Thumb drive, sd card, anything but your always connected computers hard drive.
Edit: it was actually his encryption keys for the encrypted back up. Still the same theory. Keep your encryption keys and wallet keys off your main computer. And have multiple copies.