Privacy: the ability of the RFID system to keep the meaning of the information transmitted between the tag and the reader secure from non-intended recipients.
Security: the ability of the RFID system to keep the information transmitted between the tag and the reader secure from non-intended recipients.
The issues have very different repercussions and different solutions. In a given environment, an RFID solution may pose security risks without affecting the issue of privacy. An example of this scenario is when a tag broadcasts its unique identification number in a consistent and unencrypted manner. This enables the tag to be detected by any reader that can decode the RF signal. If all that is read is the tag’s unique identifier – and no association can be made to what that identifier means without access to the backend database that maintains the relationship between the tag IDs and the objects that they represent – there is no privacy issue. However, issues of traceability and inventorying may remain.
- See more at: http://www.secureidnews.com/news-item/understanding-rfid-part-9-rfid-privacy-and-security/#sthash.bjwVprCn.dpuf