It just keeps showing up in the news. Ransomware seems to just not come to an end. If you haven't heard, ransomware is a particularly nasty virus that freezes access to your data and then demands a ransom, usually in bitcoin.
The worst thing about it is that once you are hit, there is almost nothing you can do. There are only 2 options: don't pay the ransom and lose your data, or pay it. There is no "downloadable" fix. You are stuck. With ransomware, the ONLY cure is prevention.
In the case of ransomware you need to be constantly updating your data and securing it in isolation from your network. Even then, if your backup system overrides your older data each time it backs up, you can actually save the virus if it has infected your system at the time of the backup.
To make sure you are as protected as you can be, we strongly recommend you contact a technical security expert to consult on the best way to protect against ransomware and other security hacks.