Connected medical devices and cybersecurity: the risk that grows with every added feature

Modern implantable and wearable medical devices — insulin pumps, pacemakers, defibrillators, and continuous monitoring systems among them — increasingly include wireless connectivity, enabling genuinely valuable capabilities like remote monitoring by a care team, automatic software updates, and data synchronization with a smartphone app for the patient. That connectivity, by the same token, creates a cybersecurity attack surface that a purely mechanical or non-connected device simply doesn't have, and the FDA has issued specific cybersecurity guidance and, in a handful of documented cases, recalls related to identified vulnerabilities in connected medical devices.

The realistic risk profile is worth being precise about: documented real-world cyberattacks specifically targeting an individual patient's implanted device remain extremely rare — the far more common and consequential cybersecurity risk in healthcare involves hospital networks and health system data broadly, like ransomware attacks that disrupt hospital operations, rather than a targeted attack on one patient's specific device. Security researchers have, however, demonstrated proof-of-concept vulnerabilities in various connected medical devices in controlled research settings, which is part of why manufacturers and the FDA have increased attention to this area proactively rather than reactively.

Manufacturers have responded with more structured vulnerability disclosure and patching processes, and the FDA now requires premarket cybersecurity documentation for new connected medical devices as part of the approval process — a meaningfully more rigorous requirement than existed when the first generation of connected implantable devices reached the market with less security-specific regulatory scrutiny.

For patients with a connected medical device, keeping the associated companion app and device firmware updated when prompted, understanding what data the device transmits and to whom, and asking the device manufacturer or care team directly about their vulnerability disclosure and patching practices are reasonable, practical steps — the realistic individual risk remains low, but basic device hygiene meaningfully reduces even that small risk further.