This episode delves into the realm of Continuous Glucose Monitors (GCMs) and their security considerations within the realm of the Internet of Things (IoT).
GCMs are compact devices equipped with a tiny needle that adheres to the user’s skin, allowing it to monitor blood sugar levels in real-time. Primarily designed to assist individuals with diabetes, these monitors facilitate better self-care by enabling regular and convenient blood sugar level checks. The episode highlights how GCMs can be used alongside insulin pumps for automated dosing, which introduces both convenience and potential risks.
Felix examines potential motives for hacking GCMs, including the possibility of manipulating data to trick wearers into incorrect insulin dosing. The discussion delves into scenarios where attackers could gradually influence user behavior over time, leading to long-term harm. Invasion of privacy is also explored, as the data collected by GCMs could be revealing, potentially leading to tracking of wearer’s movements or other unintended consequences.
The episode sheds light on the technical aspects of GCMs, emphasizing their use of connectivity technologies like Bluetooth and NFC. Notably, NFC-based communication lacks robust authentication and encryption, potentially making these devices vulnerable to unauthorized access or data interception. The episode highlights a community-driven software project, Nightscope, developed by parents to gain better insights into their children’s blood sugar levels. This project showcases the positive aspects of hacking in its original sense – pushing technology beyond its intended use.
Felix addresses the security considerations around GCMs, emphasizing that the cybersecurity requirements for these devices might be relatively low due to their short lifespan and the nature of the data they transmit. However, potential risks arise when GCMs are integrated with insulin pumps, raising concerns about automated insulin overdose.
In conclusion, the episode underscores the importance of securing GCMs, particularly when used in conjunction with insulin pumps, and advocates for responsible use and development of such devices. Listeners are encouraged to stay informed and explore practices that enhance cybersecurity in the IoT domain.