Dr. Rieback does research on RFID technologies at Vrije Universiteit in Amsterdam, Holland. She demonstrated the 4th generation of the "RFID Guardian", a device she coordinated development of. The purpose of her talk and device is to raise awareness of the ubiquity and insecurity of RFID technology. She hopes to make production versions of RFID Guardian and work with industry to secure many of the important uses of RFID technology.