Can a UHF Gen 2 RFID Tag’s Password Be Changed by a Reader?

By RFID Journal

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Ask The ExpertsCan a UHF Gen 2 RFID Tag’s Password Be Changed by a Reader?
RFID Journal Staff asked 9 years ago
Is it possible to do this, or is the password permanent?

—Name withheld

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According to Sanjiv Dua, the president of training and consulting firm RFID4U, the passwords to lock memory and to kill a tag can be changed by a reader unless the permalock feature was enabled when the tag was written to. Permalock locks the tag’s memory forever, he explains, and it cannot be unlocked thereafter.

—Mark Roberti, Founder and Editor, RFID Journal

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