Privacy preservation in healthcare systems

With the progression in sensor technology and the low-cost electronic circuits’ proliferation, the Internet of Things (IoT) is emerging as a promising technology for enhancing people life in terms of making decisions and communicating with ease, especially in the healthcare domain, the IoT technology transforms the traditional hospital into a smart hospital enhanced with the benefit of using the sensors to get better diagnosis and monitoring to the patients, the patient data are collected and are sent through the internet to be analysed in the cloud, This produces growth in privacy and security risks such as sensitive data disclosure and using it in a bad way. Thus, privacy and security are considered as a challenge that needs to be addressed. In this paper, we present a new taxonomy of privacy preservation techniques in healthcare systems. In addition, we analyse and discuss several recent approaches that base on existing privacypreserving techniques.