I may been a bit glib in my original post, but is there actually a website where ransomware gangs reputation are tracked?
My company bought a small business and it happened next day. A hole in RDP that was simply open to the internets. No backups, no failover, just a regular business, you know. Partially my fault, as this thing should have been evaluated/fixed before the deal. Convincing the owners that it wasn't me (I just got an administrative password) was a separate fun.
What's the magic number to make you think that it was/wasn't an inside job?