SecurityMatters is now part of Forescout
SecurityMatters is now part of 

Silent Defense

With installations worldwide, SilentDefense is the most advanced and mature OT network monitoring and intelligence platform. SilentDefense passively analyzes industrial network communications, provides rich information about network assets and alerts in real-time for any threat to operational continuity.

Featuring a user-friendly interface and out of the box detection engines, SilentDefense instantly delivers actionable results.

Discover the new benefits of:

SilentDefense 3.13
SilentDefense OT network monitoring


SilentDefense empowers industrial operators with unrivaled visibility, threat detection capability and control of their network.

  • visibility visibility


    • See what your network devices are doing
    • Assess risks, threats and vulnerabilities
    • Understand the current resilience state of your network
  • detection detection


    • Catch known and unknown threats at their earliest stages
    • Pinpoint weak spots and current inefficiencies
    • Gather all evidence required for incident response
  • control control


    • Know what's going on at all times
    • Anticipate problems and threats
    • Prioritize incident response and mitigation activity


Asset inventory and network map

Asset inventory and network map
  • Obtain full knowledge and awareness of your network through SilentDefense’s automatic asset inventory and device fingerprinting features
  • Browse through the interactive network map to understand device behavior, threats and vulnerabilities
  • Filter and export the information for reporting and backup

Visual network analytics

Visual network analytics
  • Monitor real-time network flows and industrial protocol operations through SilentDefense’s numerous graphs and widgets
  • Customize and filter your views to analyze device behavior
  • Investigate historical data to perform visual forensic analysis

Network and process anomaly detection

Network and protocols whitelists
  • Learn and validate network communications and process operations with the most in-depth analysis of industrial protocols (DPBI™ patented technology)
  • Identify rogue and malfunctioning devices, intrusions and attacks
  • Detect undesired configuration changes before they can affect the process

Industry-specific threat libraries

Industry-specific threat detection
  • Detect a wide variety of ICS-specific threats with SilentDefense’s Industrial Threat Library, which leverages over 800 built-in signatures and controls
  • Extend SilentDefense’s built-in detection capabilities by defining custom checks for your industrial environment
  • Hunt for emerging threats and prevent the spread of existing ones


product deployment and operation
product deployment ill


  • Deployed in a matter of hours, delivers immediate results
  • Connects to the SPAN/mirroring port of network switches or by using network tap technology
  • Fully passive, monitors real-time network traffic without any interference or impact on the monitored environment


  • Natively integrates with all major SIEM solutions, authentication servers and industrial firewalls
  • Features a comprehensive API for data extraction and updates
  • Its scalable architecture allows to simultaneously monitor multiple network segments and locations from a single screen

Available configurations

  • Available both as a software or appliance-based solution
  • Runs on commercial off-the-shelf hardware and hypervisors
  • Form factors and sizing for appliance-based solutions vary from standard server units to ruggedized hardware depending on the monitored environment and throughput

Protocol support

  • 15+ open OT protocols, including all smart grid and industrial automation protocols
  • Proprietary protocols of all major ICS vendors
  • 20+ IT protocols common to industrial environments
  • Support for additional protocols is added on a continuous basis or on customer request.

Integration and support

  • paloalto
  • check point
  • fortinet
  • Radar IBM
  • splunk
  • Arcsight
  • alien vault
  • abb
  • siemens
  • rockwell automation
  • schneider electric
  • honeywell
  • emerson
  • yokogawa