Postmarket cybersecurity is the ongoing protection of a medical device after it has been deployed to patients. It covers monitoring, patching, configuration management, vulnerability handling, and response to security events throughout the device’s supported life.
This matters because connected medical devices often rely on software, cloud services, patient apps, and hospital systems long after installation. If any link in that chain fails or is attacked, clinicians may lose visibility, data may stop flowing, or attackers may gain a path into the device ecosystem. In practice, postmarket security includes secure update processes, log review, incident triage, and contingency workflows when remote monitoring is unavailable. Good postmarket controls help separate a simple outage from a real compromise and reduce patient safety risk when devices remain in active clinical use.