Wow, this is really retarded. As I guessed, "unhackable" just means "something with a good source of entropy" (random patterns on butterfly scales). Their plan is to put pieces of these on products. As they say in the article, they're very fragile. Yeah, no way it could get damaged unintentionally. And nevermind having to harvest butterfly wings en masse to supply these authentication fragments. And it's not about making systems unhackable, it's just about verifying authenticity of physical objects with these attached identifiers. Did they really run out of things with random patterns? Canada's Gold Maple bullion coins use a laser to put a random texture and they scan that to verify individual coins. Some other bullion manufacturers look at the random texture on bars (PAMP Veriscan).