[RFID filter] When you add money to an RFID metro card, does the information get stored in the card's chip or in a central database? [more inside]
posted by shoesandships on Apr 29, 2008 - 4 answers

Help me figure out Smart Cards! I work for the IT department of a company looking to use smart cards for Windows domain login. Windows (XP/2003) has built-in support for several brands of smart card. Great, it should be easy! It's not. [more inside]
posted by CrayDrygu on Sep 21, 2007 - 2 answers

Can an Oyster Card be hacked? [more inside]
posted by complience on Jun 22, 2007 - 18 answers