If I leave my computer open to the internet and some other group uses it for nefarious purposes, yes generally I would not expect to be held at fault.
If I *train* that other group, if I teach them how to hack computers and give them incentives to do so, and then I leave my computer open so they can use it for whatever purposes they chose, then I would expect to be held at fault. The maker is responsible for that they make.
If I *train* that other group, if I teach them how to hack computers and give them incentives to do so, and then I leave my computer open so they can use it for whatever purposes they chose, then I would expect to be held at fault. The maker is responsible for that they make.