I. Introduction
Evolution in low-power computing over the last decade has resulted in an unprecedented integration of electronic devices with human beings, fostering a sustainable digital environment. Owing to the benefits of Dennard scaling and a rapid advancement in packaging technology, the researchers foresee a ubiquitous adoption of Body Area Networks, comprising low-power, high-performance computing devices, such as, Internet of Things [5]. This tremendous revolution in human-computer proximity, however, raises serious security concerns, stemming from the low-power operations of the silicon devices. In several critical applications (e.g., implantable medical devices), a single security breach can be detrimental. Although, the research in energy-efficient computing has matured over the years, understanding the security vulnerabilities of low-power devices is still at a nascent stage. In this work, we perform real hardware-based experiments to demonstrate an increasing security vulnerability as we move to low-power systems.