This paper is a progress report on an ongoing research effort that makes use of wireless biometric data management, specifically a Wireless Blood-glucose Monitoring System (WBgM). The goal of this research is to realize appropriate timely intervention by health-care providers in response to records of unregulated blood-glucose level in order to maintain near-normal levels. The focus of this paper is security — there is the possibility that medical information may be used consciously by a malicious eavesdropper to the detriment of a patient in search of new employment or a new insurer. There is the possibility of malicious or accidental data corruption from database intrusion. Mobile data transmission is especially problematic in preventing these. We present requirements and our approach taken to realize a secure system architecture. Key techniques and their implementation details to maintain privacy, authentication, and data integrity are discussed here.