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Annual penetration tests and quarterly vulnerability scans produce snapshots that are outdated within days as firmware updates, configuration changes, and new connections shift your OT attack surface.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

Compliance Without Evidence

Regulators demand proof of continuous risk management, but generating IEC 62443, NERC CIP, or NIS2 evidence manually is time-consuming and error-prone. Self-assessments don't satisfy auditors who want validated exposure data.

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 sent to production controllers — ever — 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 — 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

Automated Compliance Evidence for OT Regulations

Piscium maps validated exposures, remediation actions, and risk reduction metrics to the compliance frameworks that matter for OT/ICS environments. Generate audit-ready evidence packages automatically — no manual spreadsheets, no gaps.

IEC 62443

International standard for industrial automation and control systems security. Piscium maps findings to Security Levels (SL) and zone/conduit requirements.

NERC CIP

Critical infrastructure protection standards for North American bulk electric systems. Piscium automates evidence for CIP-005 (electronic security perimeters), CIP-007 (system security management), and CIP-010 (configuration change management).

NIS2 Directive

European Union directive for network and information security. Piscium supports risk management measures, incident reporting requirements, and supply chain security obligations.

NIST Cybersecurity Framework

Voluntary framework for critical infrastructure. Piscium maps to Identify, Protect, Detect, Respond, and Recover functions with quantitative exposure metrics.

TSA Security Directives

Pipeline and surface transportation security requirements. Piscium automates network segmentation validation and access control verification.

ISA/IEC 62443

Security for industrial automation and control systems. Piscium validates security zone definitions, conduit integrity, and component-level security requirements.

Trusted by Critical Infrastructure Operators

  • 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
  • IEC 62443, NERC CIP, and NIS2 compliance evidence generated automatically
  • Deployed in energy, water, manufacturing, and transportation environments

Piscium gave us the attacker's perspective we were missing. We identified and validated 47 previously unknown attack paths from our corporate network to Level 1 controllers — and closed them all within 90 days.

VP of OT Security, European Energy Utility

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.

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.