I was infected by CryptoWall 2.0 last year on my office laptop. Luckily, our network was not infected at the time. I paid the ransom and was able to retrieve 99% of my files with the exception of a few Outlook .pst files. I now pay Backblaze annually to run a continuous backup of everything on my hard drive that is personal in nature. This gives me great piece of mind. Little did I know that although my files were restored, the date and time stamp information that tells me when the files were created or last modified was lost after decryption. The bad guys don't tell you this. So, my ability to sort and find files based on date and time is no longer an option with the retired files. Having daily back-ups is the way to go. Fast forward 1 year and someone within our company notice today that CryptoWall 3.0 had found it's way to our network server. Luckily, our IT guys complete daily back-ups that are not infected. The cost of lost productivity across the globe due to this virus is immeasurable.