Purpose-Built OT Security Assessment
Industrial Control Systems demand a fundamentally different testing approach. CyberAlpha's SCADA / ICS Security Assessment is designed around IEC 62443 and NIST SP 800-82, combining passive traffic analysis, active-but-safe testing on air-gapped replicas, and architecture reviews that never disrupt production.
Our OT specialists understand Modbus, DNP3, IEC 61850, OPC UA, Profinet, EtherNet/IP, and HART protocols, plus the vendor-specific engineering stacks of Siemens, Rockwell, Schneider, ABB, Honeywell, Yokogawa, and Emerson.
The outcome is a prioritized, risk-ranked view of exposure across your Purdue model zones, with remediation aligned to operational constraints — because availability is the priority in OT, and no assessment is worth a production outage.
Schedule a ConsultationLegacy PLCs
Controllers built without security in mind accept unauthenticated commands on the plant network.
Flat IT/OT Networks
Poor segmentation allows ransomware and commodity malware to pivot from IT into production.
Insecure Protocols
Modbus, DNP3, and Profinet transmit commands with no authentication or integrity checks.
Third-Party Access
Vendor VPNs and remote support tunnels are often the easiest path into an OT environment.
OT Threats Are Real and Growing
Legacy PLCs
Controllers built without security in mind accept unauthenticated commands on the plant network.
Flat IT/OT Networks
Poor segmentation allows ransomware and commodity malware to pivot from IT into production.
Insecure Protocols
Modbus, DNP3, and Profinet transmit commands with no authentication or integrity checks.
Third-Party Access
Vendor VPNs and remote support tunnels are often the easiest path into an OT environment.
Safety System Risk
TRITON and similar incidents proved Safety Instrumented Systems can be tampered with.
Monitoring Gaps
Most OT networks lack proper passive monitoring and protocol-aware intrusion detection.
End-to-End ICS Security Services
Safety-first assessment methodology covering the full Purdue model — Level 0 sensors to Level 4/5 business systems.
Safer, More Resilient Operations
Zero Production Impact
Assessment methodology ensures no disruption to process operations or safety systems.
IEC 62443 Alignment
Findings mapped to IEC 62443 foundational requirements and security levels.
Ransomware Containment
Segmentation improvements that prevent IT-originated malware from crossing into OT.
Vendor Access Control
Tightened remote support paths with session recording and just-in-time access.
Protocol Visibility
Passive monitoring baseline that detects anomalies in Modbus, DNP3, and OPC traffic.
Regulatory Evidence
Supports NERC CIP, NIS2, and sector-specific regulatory obligations.
OT Weaknesses We Regularly Identify
Unauthenticated Modbus
PLCs accepting function codes 5, 6, 15, and 16 from any source on the network.
Flat L2/L3 Networks
No segmentation between Purdue Level 2 and Level 3.5, allowing lateral movement.
Weak Vendor VPNs
Always-on vendor tunnels with shared credentials and no session recording.
Default HMI Credentials
SCADA and HMI software using factory default or shared operator credentials.
Unpatched Engineering Stations
Windows 7 or XP engineering workstations connected to both IT and OT networks.
SIS Exposure
Safety systems reachable from process networks without strict conduit enforcement.
Documentation Built for OT Teams
Executive Summary
Business-impact overview of operational risk, safety exposure, and regulatory posture.
Zone & Conduit Diagrams
Updated Purdue-model diagrams showing current vs. target IEC 62443 zones and conduits.
Asset Inventory
Validated inventory of PLCs, RTUs, HMIs, and network devices with firmware levels.
Risk Register
Risk-ranked findings prioritized by impact on safety, availability, and integrity.
Remediation Roadmap
Phased plan of short, medium, and long-term mitigations aligned with planned outages.
OT Playbooks
Incident response and change-management playbooks tailored to your ICS environment.
A Safety-First OT Methodology
Scoping & Safety Review
Define assets, identify safety-critical systems, and agree strict rules of engagement with plant teams.
Architecture & Documentation Review
Review network diagrams, asset inventories, and policies against IEC 62443 and NIST 800-82.
Passive Traffic Analysis
Capture and analyze OT traffic on-site or via remote collectors without injecting packets.
Controlled Active Testing
Active assessment performed only on non-production replicas or during agreed maintenance windows.
Segmentation Validation
Verify firewall rules, DMZ controls, and vendor remote access enforcement in the field.
Reporting & Workshop
Joint workshop with OT, IT, and engineering to prioritize remediation alongside operational constraints.
Trusted Across Critical Infrastructure
GICSP & ISA/IEC 62443 Certified
Dedicated OT certifications on top of offensive security credentials.
Safety-First Approach
Documented safe-testing methodology with zero production incidents to date.
Multi-Vendor Experience
Deep expertise across Siemens, Rockwell, Schneider, ABB, Honeywell, Yokogawa, and Emerson.
Operations-Aware
Our consultants have worked inside plants and understand the operational trade-offs.
Regulator-Ready Output
Reports formatted for NERC CIP, NIS2, and sector-specific oversight bodies.
Joint IT/OT Teams
Engagements led by consultants fluent in both enterprise IT and industrial engineering.