Closing the Visibility Gap: How Qualys Cloud Agent Passive Sensor (CAPS) Eliminates Blind Spots Without the Hassle

This document introduces Qualys Cloud Agent Passive Sensor (CAPS), a feature of Qualys CSAM that adds passive network sensing to the existing Cloud Agent to discover unknown and unmanaged assets across IT/OT environments. It explains how CAPS monitors broadcast/multicast traffic to collect asset metadata, autonomously coordinates leader/standby sensing per subnet, de-duplicates data, integrates bi-directionally with CMDB/SIEM, filters non-corporate data, and triggers alerts on unidentified assets. The report highlights benefits such as comprehensive visibility, unified risk view within the TruRisk platform, and reduced TCO, and provides brief deployment details and FAQs.