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.
Passive-first discovery · OT-safe validation · IEC 62443 compliance mapping · Results in hours, not weeks
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Annual penetration tests and quarterly vulnerability scans produce snapshots that are outdated within days as firmware updates, configuration changes, and new connections shift your OT attack surface.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
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
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
See How Attackers Traverse Your OT Network
During assessment, Piscium models complete attack chains from internet-exposed IT assets through DMZ boundaries into Level 2-3 supervisory systems and down to Level 0-1 field controllers. Each hop is scored by exploitability and operational impact. We show you the paths attackers would take — and validate that your remediations actually break them.
Security That Understands the Purdue Model
Piscium maps your entire OT environment to the Purdue Model — from Level 5 enterprise systems down to Level 0 physical processes. Attack graphs respect zone boundaries, validation respects safety constraints, and compliance evidence maps to the framework requirements specific to each layer. This isn't IT security force-fitted to OT — it's OT-native threat exposure management.
Integrates With Your Existing OT Security Stack
Piscium ingests telemetry from OT network monitors, asset inventories, and vulnerability scanners. Validated findings flow into your SIEM, ITSM, and security workflows — enriched with Purdue Model context, compliance mappings, and remediation guidance. No rip-and-replace required.
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.”
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 Case Studies
Energy & Utilities
National Energy Grid Operator Cuts Mean-Time-to-Remediate by 68%
A national energy grid operator managing 12,000+ OT assets across 48 substations relied on annual penetration tests and quarterly vulnerability scans. Between assessments, new threat vectors emerged undetected — and manual remediation workflows averaged 45 days from discovery to fix.
Water & Wastewater
Regional Water Authority Achieves Continuous OT Security Validation
A regional water treatment authority operating 6 treatment plants and 200+ pumping stations had no visibility into OT-specific attack vectors. Their IT-focused security tools couldn't understand industrial protocols, leaving PLCs and HMIs in a monitoring blind spot.