Boing Boing: HOWTO make an RFID virus

For libraries that use RFID for circulation and inventory purposes you may want to look at this article via Boingboing. Seems you might be open viruses.
Boing Boing: HOWTO make an RFID virus: "Computer scientists from Vrije Universiteit Amsterdam developed the first 'self-replicating RFID virus.' The idea is that the radio frequency identification tag acts as a 'vector' to infect the RFID middleware software that companies, for example, may be running as part of a system to track inventory of products."

Guess good ol' fashion barcodes aren't all that bad after all...