Hacking proximity cards

An important aspect of security is, of course, physical security. So note ye well these notes on hacking proximity cards [robot]. It’s worrying how simple all this stuff is… Once again we see that just because some technology is widespread or ubiquitous, that doesn’t mean it’s actually at all secure. Sure, a certain amount of effort is required to break these mechanisms, but someone will go to that effort. The trick is to design systems where the amount of effort is astronomical and uneconomical.