With more number of aged people being diagnosed for Alzheimer’s disease and prevention being the only remedy, the proposed idea helps in continuous monitoring through wireless technology. The Tracking, Monitoring and tele-Diagnosing (TMD) secure system utilises Bluetooth wireless technology. Here the movement pattern of the patient is tracked with the help of Bluetooth enabled handheld device carried by the patient and Bluetooth APs located in each room. This pattern is stored in the data base. To protect the privacy of the patient the collected information is secured through geo-encryption technique before sending via open wireless channel (internet). The remote medical practitioner is able to diagnose whether the target patient is developing Alzheimer’s disease from the received information. Thus, our proposed system provides secured remote diagnosis of the disease in senior people.