RFID Nike iPod Privacy Breach

University of Washington research demonstrates flaws in the RFID technology used in the the Nike Ipod Sport kit, that enable tracking of individuals from moderate distanced, compromising their security. Additional cryptography could be added to deal with this flaw. ...

... "As part of our research, we built a number of surveillance tools that malicious individuals could use to track Nike+iPod Sport Kit owners. Our tools can track Nike+iPod Sport Kit owners while they our working out, as well as when they are just casually walking around town, a parking lot, or a college campus. " ...

Via University of Washington: The Nike+iPod Sport Kit