> Off topic but I have seen interesting labels that break destructively. I don't know if it has been invented yet, however here's the idea: a RFID tag that nor

> Off topic but I have seen interesting labels that break destructively. I don't know if it has been invented yet, however here's the idea: a RFID tag that normally returns a valid code, but any removal attempt would not simply destroy it, but rather change the code (for example through bit changes by peeling conductive parts of it) into one that would return a tamper warning at next readings. That would also make possible to track when the box was opened (therefore potentially also finding by whom) since all boxes must be scanned at every step. The tag however should be put in a place where the user would not stick a cutter blade; it should peel off for example as the result of pulling a string to open the box, removing a piece of cardboard, etc.