The purpose of artifactory was to allow access to packages even though the machines the agents were running on doesn't have open internet access. That meets the definition of a sandbox (or more precisely, artifactory is part of a sandbox), even if it's not a typical sandbox that's built into the OS or acts as a hypervisor. There also isn't a clear distinction between software that's specifically intended to be used "sandbox" vs everything else. For instance, if you have a bunch of agents running on separate machines and want to connect them, you need a router, but that specifically doesn't have to be a "sandbox" router. And if it turned out the router got hacked, it doesn't make sense to say "well of course it got hacked, because it's not a sandbox!"
>Additionally, without the message board, many of the recent incidents would have not been possible.
Source? Was having a message board critical to developing a 0day, or is it just something that merely facilitated the process, but the model could have found the 0day regardless? That's important, because you could argue that a criminal couldn't have committed a given act without say, a gun they bought on the dark web, and then blamed the whole crime on the dark web, but they could have plausibly acquired the gun through other means.