RFID crackers hotwire cars, steal gas, sniff phones

This paper, "Analysis of the Texas Instruments DST RFID," is a thoroughgoing description of the vulnerabilities in commond RFID tag technology. In a series of related videos, the authors snoop on mobile phones, hotwire a car, and steal gas from a pump-payment system, all using breaks to the RFID. Amazing stuff. Link (via Beyond the Beyond)