Further to an earlier blog about the "broken" Chip & PIN credit card security system (strictly speaking, the primary problem described is with EMV), it's noticeable that, as John Leyden puts it, "Industry groups [have] leap[t] to Chip and PIN's defence." In fact, the response has been a bit more mixed than that. But there

[Update: added some extra links at http://avien.net/blog/?p=422] Here, so to speak, is a bit of hot potato*. Flippancy notwithstanding, this isn't really funny. For several years now, Brits have enjoyed a banking card system called chip and PIN, a simple form of two-factor authentication for in-person credit and debit card transactions. In countries where the