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Asset Management
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Risk Remediation
Threat Detection & Response
  • Overview
  • Platform Apps

  • Qualys Endpoint Security

    Advanced endpoint threat protection, improved threat context, and alert prioritization

  • Context XDR

    Extend detection and response beyond the endpoint to the enterprise

Cloud Security

Passive Scanning Sensor.

Automatically detect and profile all network-connected systems, eliminating blind spots across your IT environment.

Continuous and unobtrusive detection of every asset and its activity on your network

Qualys Passive Scanning Sensor is available as a physical or virtualized appliance. It comes in two models — 1 Gbps and 10 Gbps — which can be combined to scale across different network topologies and sizes.


Instant, complete detection

Qualys Passive Scanning Sensor (PS) continuously monitors all network traffic and flags any asset activity. It identifies and profiles devices the moment they connect to the network, including those difficult to scan, corporate owned, brought by employees, and rogue IT. The data is sent immediately to the Enterprise TruRisk Platform for centralized analysis.

Continuous inventory enhancement

Qualys PS enriches existing asset inventory with additional details, such as recent open ports, traffic summary, network services and applications in use. This helps customers gain a deeper understanding of an asset and its activity on the network in near-real time.

Scanner and agent complement

Qualys PS identifies assets that for different reasons can’t be actively scanned nor monitored with agents. That’s often the case with assets like industrial equipment, IoT and medical devices.

Centralized control and visibility of assets

The Qualys Global AssetView cloud app aggregates and correlates the data gathered by all Qualys sensors – Qualys PS, the Qualys network scanners and the Qualys Cloud Agent – giving you a comprehensive, detailed inventory of all your hardware and software, as well as a multi-dimensional view of your global, hybrid IT environment. This visibility addresses the first two of the Top 20 CIS Controls: inventory and control of hardware and software assets.

Try the Qualys Passive Scanning Sensor with Qualys Global AssetView. It's free! Unlimited assets.

Fully cloud-based, it’s easy to deploy and manage. Schedule a demo or request call back. Email us or call us at 1 (800) 745-4355.