If you’ve worked with passive RFID before, you know that most readers only work within inches of the card. In [Fran’s] DEFCON talk this summer he calls it the “ass-grabbing method” of ...

We also enjoyed his look at the Atmel T5557 and ATA5567 on-card chips used for ... in learning more about RFID this is a wonderful resource as it covers readers, writers, spoofer, and tags.