to privacy concerns. Therefore, the number of customers in the loyalty systems is decreasing day by

matching schema. Thus, public information can be exploited to pose a threat to the privacy of the people on

eligibility, privacy, authentication, etc. So that the system detects whether the data is coming from an

practice in Turkey. The perceptions of privacy and publicness concepts in Turkish Culture are different

, semi-private and public spaces), privacy concept in housing, spatial quality.