Piscium
OT & ICS Security

Continuous Threat Exposure Management Purpose-Built for OT & ICS

Operational technology environments demand security that understands industrial protocols, respects safety boundaries, and never disrupts production. Piscium delivers attacker-side visibility across your entire OT estate, from enterprise IT to Level 0 field devices.

Why Traditional Security Falls Short in OT

IT security tools weren't designed for operational technology. The consequences of getting it wrong aren't data breaches. They're physical safety incidents, production shutdowns, and regulatory enforcement.

Blind Spots in OT Networks

Traditional IT scanners can't see, or safely probe, PLCs, RTUs, SCADA systems, and engineering workstations. Active scanning risks triggering safety shutdowns. You can't protect what you can't see.

Point-in-Time Assessments Expire Fast

Annual penetration tests and quarterly vulnerability scans produce snapshots that are outdated within days as firmware updates, configuration changes, and new connections shift your OT attack surface.

IT/OT Convergence Widens the Attack Surface

As IT and OT networks converge through historians, remote access, and cloud connectivity, attackers can pivot from corporate IT into industrial control systems through lateral movement paths that cross Purdue Model boundaries.

Risk Claims Without Evidence

Boards and regulators want proof of continuous risk management, but manual evidence-gathering is slow and error-prone. Point-in-time self-assessments don't reflect real, validated exposure.

Three Phases of Continuous Threat Exposure Management

Piscium's CTEM engine maps, prioritizes, and validates exposures across your OT environment: continuously, safely, and without disrupting production.

Passive-First Discovery for OT Environments

Piscium discovers and classifies every asset on your OT network using passive traffic analysis and protocol-aware fingerprinting. No packets are ever sent to production controllers unless you explicitly authorize active probing.

  • Passive network monitoring identifies PLCs, RTUs, HMIs, SCADA servers, and engineering workstations
  • Protocol-aware fingerprinting for Modbus/TCP, EtherNet/IP, OPC UA, DNP3, S7comm, PROFINET
  • Automatic Purdue Model classification maps devices to their network zone
  • Identifies shadow OT assets and unauthorized connections between IT and OT zones
Learn more about discovery
Industrial control room with monitors

Impact-Based Prioritization for Industrial Risk

Not every vulnerability is exploitable, and not every exploit has the same consequences. Piscium's attack graph engine scores OT exposures by exploitability, lateral movement potential, and operational impact, so you fix what actually puts production at risk.

  • Attack paths scored by blast radius: safety system compromise, production shutdown, data exfiltration
  • Purdue Model-aware prioritization: Level 0-1 exposures rank higher than Level 4-5
  • Exploitability assessment considers OT-specific factors (firmware age, protocol weaknesses, segmentation gaps)
  • Integration with your CMDB/asset inventory for context-enriched risk scoring
Learn more about prioritization
Microchip circuit detail

OT-Safe Validation That Proves Remediation

Piscium validates that remediations actually break attacker paths using safe, controlled emulations that respect configurable OT safety boundaries. No guesswork, just evidence-based proof that your fixes work.

  • Autonomous AI agents emulate attacker techniques using OT-safe methods
  • Configurable safety boundaries prevent actions that could affect production operations
  • Pass/fail validation with evidence: screenshots, packet captures, audit trail
  • Continuous re-validation ensures new configurations don't reintroduce broken paths
Learn more about validation
Cybersecurity abstract visualization

Built to a Standard for Autonomous Testing

Piscium's autonomous discovery and validation follow the OWASP Autonomous Penetration Testing Standard (APTS), operating safely, transparently, and within the boundaries you define. We don't issue regulatory attestations or claim certifications we haven't earned.

Built for OT/ICS From the Ground Up

  • Purpose-built for OT/ICS, not IT security bolted onto industrial networks
  • Passive-first discovery: zero production impact, zero safety risk
  • Validated by autonomous AI agents with configurable OT safety boundaries
  • Autonomous testing aligned with the OWASP APTS
  • Deployed in energy, water, manufacturing, and transportation environments

Energy & Utilities

European Energy Utility Reduces Exposure Window by 85%

A critical infrastructure operator faced mounting regulatory pressure and a growing OT attack surface with no visibility into actual exploitability.

Secure Your OT Environment, Continuously

See how Piscium delivers autonomous threat exposure management for operational technology, without disrupting production.

Related Resources

Guide
What Is Continuous Threat Exposure Management (CTEM)?

A practical introduction to CTEM, Gartner's framework for continuously validating and reducing cyber risk in critical infrastructure.

Read More
Blog
Purple Teaming for OT/ICS: Why Traditional Pen Testing Falls Short

How purple team methodology brings attacker-defender collaboration to OT environments with protocol-aware, safety-bounded validation.

Read More
Blog
Attack Graph Engines: Moving Beyond Flat Vulnerability Lists

How dynamic attack graph analysis turns vulnerability data into actionable intelligence by mapping real-world attack paths.

Read More

Frequently Asked Questions

Is Piscium safe for production OT environments?
Yes. Piscium uses passive-first discovery that analyzes network traffic without sending packets to production controllers. Validation uses configurable safety boundaries that prevent any action that could affect physical processes. You control what Piscium can and cannot do in your environment.
Which OT protocols does Piscium support?
Piscium supports Modbus/TCP, EtherNet/IP (CIP), OPC UA, DNP3, IEC 61850, PROFINET, BACnet, and S7comm. Our protocol library is continuously expanded based on customer environments and emerging standards.
How does Piscium handle air-gapped OT networks?
Piscium offers hybrid deployment with on-premise sensors that can relay findings to the cloud platform via secure one-way data diodes, or operate fully offline with local analysis and reporting. Air-gapped environments receive the same level of coverage.
Does Piscium replace our existing OT security tools?
No. Piscium complements your existing EDR, NAC, and network monitoring tools. It integrates with your current stack and adds the attack-path analysis and validation layer that most OT security tools lack.
How quickly can we see results?
Initial passive discovery identifies your OT asset inventory within hours of deployment. Full attack-path analysis and first validated findings are typically available within 48 hours. Continuous monitoring and validation begin immediately after initial assessment.