Critical Infrastructure Monitoring

OT Defenders Need More
Than Stale Scans and IOCs.

Censys discovers exposed industrial systems, shadow infrastructure, and remote access services across the globe.

Our Customers

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Why Critical Infrastructure Teams Choose Censys

The Gold Standard For External OT Exposures

Across 180k+ Internet-Facing Hosts, 428k+ Web Properties and counting

Real-Time Visibility for ICS/OT Security Operations

Industrial protocol + vendor fingerprinting

Identify externally reachable services (including common industrial protocols and remote access interfaces) so you can prioritize high-risk control surfaces across distributed environments.

HMI screenshot validation

See what attackers see via automatic screen captures from common remote interfaces, giving you definitive proof of exposure for response and remediation.

Censys ARC adversary infrastructure tracking

Leverage Censys ARC’s tracked infrastructure and research-driven labels to hunt for ransomware and targeted activity, then pivot through related hosts, certificates, domains, and services to expand investigations beyond a single indicator.

Compliance-ready exposure reporting

Generate evidence and reporting aligned to critical infrastructure programs and frameworks like NERC CIP, NIST SP 800-82, IEC 62443, and NIST CSF to support audits, resilience reporting, and executive risk oversight.

Integrations for SIEM/SOAR, TIP, and AI

Operationalize findings across SIEM/SOAR and TIP workflows, and power AI modernization using the Censys Assistant and MCP server. Context flows into the tools and copilots your teams already use.

Identify externally reachable services (including common industrial protocols and remote access interfaces) so you can prioritize high-risk control surfaces across distributed environments.

See what attackers see via automatic screen captures from common remote interfaces, giving you definitive proof of exposure for response and remediation.

Leverage Censys ARC’s tracked infrastructure and research-driven labels to hunt for ransomware and targeted activity, then pivot through related hosts, certificates, domains, and services to expand investigations beyond a single indicator.

Generate evidence and reporting aligned to critical infrastructure programs and frameworks like NERC CIP, NIST SP 800-82, IEC 62443, and NIST CSF to support audits, resilience reporting, and executive risk oversight.

Operationalize findings across SIEM/SOAR and TIP workflows, and power AI modernization using the Censys Assistant and MCP server. Context flows into the tools and copilots your teams already use.

Case Study

U.S. Environmental Protection Agency (EPA)

Highlights
  • Identified 400 exposed U.S. water facility interfaces
  • Forty systems lacked any authentication or controls
  • Coordinated remediation with the EPA and vendor
  • Reduced exposures by over 94% by May 2025
assisting the U.S. Environmental Protection Agency (EPA)

The Censys ARC Research Team

We found nearly 400 exposed water HMIs and moved fast—24% secured in nine days, 58% within weeks, and exposure reduced to under 6% within seven months.

Experience Censys Data in Action

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