Too many topics, too little time

Spotted in 2600: Spoofing Singapore’s National Library:
In the recent issue of 2600: The Hacker Quarterly (autumn 2006), there’s a writeup by Ghostie about spoofing the Singapore Library’s RFID and barcode checkout scanners. Note that this zine probably isn’t available in Singapore, so I thought it would be educational from a security perspective.
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rfid is not secure.