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Industrial Strength OT and IoT Security and Visibility

Nozomi Networks Guardian™ delivers visibility, security and monitoring of your OT, IoT, IT, edge and cloud assets.

Guardian sensors send data to Vantage for consolidated security management anywhere, anytime from the cloud. They can also send data to the Central Management Console for aggregated data analysis at the edge or in the public cloud.

The world’s top companies rely on Guardian to protect their critical infrastructure, energy, manufacturing, mining, transportation, building automation and other sites around the world.


Asset Discovery and Network Visualization


Vulnerability Assessment and Risk Monitoring


Real-time Anomaly and Threat Detection


Focused Risk Information and Time-Saving Response Tools


Unified Security for Hundreds of Thousands of Assets

OT and IoT Security and Visibility

You can protect a wide variety of mixed environments with rapid asset discovery, network visualization and accelerated security.

Every Vantage license includes an unlimited number of Guardian virtual sensor licenses, enabling you to deploy Guardian sensors wherever you want to increase your visibility and security.

You can tailor the Nozomi Networks solution to meet your needs by utilizing its flexible architecture and integrations with other systems



Enhance Guardian for Expanded Visibility and Threat Detection


Threat Intelligence

The Threat Intelligence service delivers ongoing OT and IoT threat and vulnerability intelligence. It helps you stay on top of emerging threats and new vulnerabilities, and reduce your mean-time-to-detect (MTTD).

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Asset Intelligence

The Asset Intelligence service delivers regular profile updates for faster and more accurate anomaly detection. It helps you focus efforts and reduce your mean-time-to-respond (MTTR).

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Smart Polling

Smart Polling adds low-volume active polling to Guardian’s passive asset discovery, enhancing your asset tracking, vulnerability assessment and security monitoring.

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Remote Collectors

Remote Collectors are low-resource sensors that capture data from your distributed locations and send it to Guardian for analysis. They improve visibility while reducing deployment costs.

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Learn More About OT and IoT Security and Visibility


Guardian Tech Specs






Threat Intelligence


Asset Intelligence


Nozomi Networks Overview with Product Demo

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Vulnerability Assessment and Risk Monitoring

Rapidly Identify Your Vulnerability Risks

Automated Vulnerability Assessment

Identifies which vendors’ devices are vulnerable

Utilizes the U.S. government’s National Vulnerability Database (NVD) for standardized naming, description and scoring

Efficient Prioritization and Remediation

Speeds response with vulnerability dashboards, drilldowns and reports

Answers questions like:

  • “Are my assets running vulnerable firmware?”
  • “Are assets from Vendor X vulnerable?”

List showing the vulnerabilities for a facility’s assets.

Continuously Monitor Your Networks and Automation Systems

Continuous Monitoring

Continuous monitoring of all supported protocols: OT, IoT and IT

No critical blind spots in protection caused by limited monitoring or inadequate protocol support

Monitors assets from all vendors and all network communications

Easy Access to OT Data

Summarizes OT and IoT risk information for customizable date and time ranges

Highlights indicators of reliability issues, such as unusual process values

Queries any aspect of your network or control system performance, reducing data collection and spreadsheet work

Portion of customizable Guardian Dashboard.


Time-Saving Dashboards and Forensic Tools

Significantly Improve OT and IoT Risk Management

Dashboards and Customizable Reports Highlight Risks

Focuses attention on key concerns by summarizing risks and threats

Built-in reports are customizable. You can select from predefined widgets to add exactly the information you need.

Detailed Alerts Provide Key Information

Generates detailed, accurate alerts

Identifies security and reliability risks

Groups alerts into incidents, providing security and operations staff with a simple, clear, consolidated view of what’s happening on their network

Customizable reports summarize risks, assets and alerts.

Greatly Reduce Troubleshooting and Forensic Efforts

Accelerated Incident Response

Combines Guardian’s breakthrough anomaly detection for OT and IoT with the Asset Intelligence™ service for focused, actionable alerts

Understands normal behavior for assets with frequent behavior changes, eliminating alerts for benign anomalies

Improves response time and productivity with precise alerts that are easy to prioritize

Fast Forensic Analysis

Focuses effort with Smart Incidents™ that

  • Correlate and consolidate alerts
  • Provide operational and security context
  • Supply automatic packet captures

Decodes incidents with Time Machine™ before and after system snapshots

Provides answers fast with a powerful ad hoc query tool

Smart Incident showing related alerts and security context.