The silliest thing about HP's claim that your network might get hacked due to an invalid printing cartridge is that, if that's the case, then the fault is with

The silliest thing about HP's claim that your network might get hacked due to an invalid printing cartridge is that, if that's the case, then the fault is with the printer. And no amount of DRM will change the likelihood that a malicious device inserted into the printer could hack it. And anyway, this could be easily remedied by making the interchangeable part of the ink refill completely mechanical, with no embedded IC or electronics at all.