From a bit of searching, it looks like the individual responding to the disclosure emails is a patent attorney, claiming to specialize in bitcoin patents.
I’d be terrified to have him be my lawyer for anything, given his responses here. Artinfo is clearly dead in the water at this point, and I can’t even tell if he is the actual owner of it, or just a legal representative.
The security issues are terrible, but it’d really suck to have your company torpedoed by your unhinged IP counsel.