Qualys Network Passive Sensor functions as a passive network discovery component within Qualys' CyberSecurity Asset Management (CSAM) platform. The sensor leverages passive discovery capabilities to automatically detect and profile all network connected systems, eliminating blind spots across IT environments. It performs real-time network monitoring to identify unmanaged assets and IoT/OT devices across an organization's network infrastructure, analyzing network traffic and communications patterns to understand asset behavior. The sensor delivers results without requiring information about network design and functions as part of the Qualys agent system to detect assets that may be missed by traditional scanning methods, agents, and API-based discovery.
