My co-founder and I have talked about things like this as an "anti-cheating" measure (we developed a take-home assessment platform), but it always feels way too overboard and invasive for an exaggerated problem (and I'm just against it in pretty much every way imaginable).
Interestingly this somehow feels better than overt measures like ProctorU, but that's an emotional reaction and not a logical one. In some ways it's probably much worse.