A lock command is a command that RFID readers can send to an RFID tag to block access to certain information on the RFID tag.
Depending on its implementation, a lock command can prevent further modification of data in the RFID tag’s memory or can prevent access to data in the RFID tag’s memory. In some cases, the lock command is permanent and in other cases, a reader can “unlock” the memory.
- ↑ Guidelines for Securing Radio Frequency Identification (RFID) Systems, Glossary, at B-2.
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