See also: Anonymization, De-Identify

CIMM DEFINITION: The result of anonymizing MAC addresses or other identifying information about the household or Set-Top Box. Results in a STB identifier per each data record that cannot be matched back to the original household, viewer or Set-Top Box.

NOTE – In some cases hashing is carried out daily which destroys ability to do Reach / Frequency / Frequency Distribution / ROI reporting because there is no persistent anonymous household identifier in those cases. (Source:TRA)