> I really don't see why so many millions (billions?) of dollars have been spent on technologies which so far have never kept the bad guys out. Sunk cost i

> I really don't see why so many millions (billions?) of dollars have been spent on technologies which so far have never kept the bad guys out. Sunk cost investment bias [0]. Past a certain point, even when the outcome is obviously futile, it becomes a mixture of accumulated momentum and pure bloody mindedness to "build it if it kills us". Companies like Microsoft or Sony have entire departments of people working on "rights management". Nobody has the courage to just say, "Sorry guys, this is a fool's errand, we're going to shut it down and move you all onto something more productive". [0] https://en.wikipedia.org/wiki/Sunk_cost https://en.wikipedia.org/wiki/Sunk_cost