Is it possible to do this?
The easiest way would be to have people enter their username and password into a web-based application, and to then use a passive ultrahigh-frequency (UHF) reader to read their ID badge and link the badge's serial number to that information. You would need to develop software to store the username and password, as well as link that data to the RFID transponder's unique ID number. When the transponder is read, the software would log the person into Facebook automatically.
—Mark Roberti, Founder and Editor, RFID Journal
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