This is just one more reason to do more frequent backups, and build some additional redundancy into the systems. It would have been more credible if the person who did this, could have shown
proof of this. There are a lot of shills and trolls out there, who would make unsubstantiated claims and has no physical evidence to back up there statements. I would not buy this software of the
Darknet, because it could contain a Trojan horse, that might infect your own system... and you end up paying the ransom.