ICS / SCADA Security Assessment: Harden OT & Industrial Control Systems
Identify and remediate cyber-physical risks at the component level. Our ICS/SCADA security assessments deliver deep-dive vulnerability analysis and threat modeling across PLCs, RTUs, HMIs, and legacy industrial protocols—protecting critical infrastructure from sophisticated attacks without disrupting operational uptime.
"ICS / SCADA Security Assessment is a highly specialized evaluation of operational technology (OT) environments, designed to identify vulnerabilities in PLCs, RTUs, HMIs, and industrial protocols that could compromise physical safety, process integrity, or service continuity."
Unlike traditional corporate IT, industrial security prioritizes physical safety and high system availability over data confidentiality. We audit industrial controller firmware, legacy industrial protocols, access control mechanisms, and engineering workstation configurations to safeguard critical workflows.
By combining passive network monitoring, safe offline/online configuration reviews, and physical-security-aware threat modeling, we enable industrial operators to discover vulnerabilities before adversaries can exploit them to trigger outages, environmental damage, or safety failures.
"In industrial environments, safety is the primary metric —a security compromise is not just a data leak, it is a physical and operational threat."
OT & SCADA Security: Securing Cyber-Physical System Integrity
Industrial Network Logic Visualization
The Real Stakes of Industrial & OT Vulnerability
Physical & Cyber-Physical Risk
Unlike corporate IT breaches, OT security threats affect physical systems. Overriding Safety Instrumented Systems (SIS) can lead to equipment destruction, environmental disasters, or direct threat to human life.
Legacy & Insecure-by-Design Protocols
Industrial control protocols like Modbus, DNP3, and BACnet were designed decades ago for isolated networks. They lack inherent authentication, allowing attackers who gain access to inject arbitrary commands to PLCs and HMIs.
IT-OT Convergence Exposure
Connecting once-isolated plant environments to corporate networks and cloud services creates critical gaps. Lateral movement from compromised corporate workstations to engineering nodes is the #1 vector for SCADA outages.
Global ICS & OT Threat Landscape
Aligned with NIST SP 800-82 & IEC 62443 standards
Insecure Engineering Terminals
Engineering workstations containing critical controller software compromised to push rogue logic updates.
Unencrypted Protocol Injection
Legacy industrial protocols (Modbus, DNP3) hijacked to send unauthorized control codes.
Unpatched Controller Firmware
Programmable Logic Controllers (PLCs) running vulnerable firmware susceptible to remote crash or takeover.
Exposed HMI Dashboards
Human-Machine Interfaces with weak or disabled authentication allowing changes to system setpoints.
IT-OT Boundary Violations
Improperly segmented firewalls allowing direct corporate-to-plant communication, bypassing air-gapping.
Internet-Exposed SCADA Portals
Industrial gateway terminals and remote support portals visible to the public internet without MFA.
Safety Instrumented System (SIS) Override
Advanced tampering designed to disable automated plant emergency shutdown systems.
Shadow Operational Assets
Unmanaged connected meters, smart actuators, or third-party diagnostics bypassing inventory systems.
Data Historian Intrusion
Targeted access to process historians, leaking manufacturing recipes and structural telemetry.
Privileged Remote Access Abuse
Compromised third-party maintenance credentials used to establish persistent control tunnels.
Why ICS / SCADA Security Assessment is Critical
In operational technology (OT), cybersecurity directly impacts physical safety. Our assessments provide deep-dive validation of your critical control plane, networks, and automation devices, ensuring continuous production safety and resilience against targeted ransomware and sophisticated cyber-physical threats.
Ensure Plant & Process Safety
Protect human life, physical machinery, and operational safety systems by identifying vulnerabilities that could lead to physical equipment damage or process disruption.
Minimize Operational Downtime
Prevent catastrophic production outages and system halts caused by network intrusion, control code injection, or unauthorized configuration edits.
Enforce Cyber-Physical Resilience
Audit and reinforce the security of engineering workstations and field devices to prevent unauthorized control logic changes.
Satisfy Industrial & OT Regulations
Demonstrate full compliance with recognized critical infrastructure cybersecurity standards, including IEC 62443, NIST SP 800-82, and NERC CIP.
Comprehensive Assessment Scope
Our ICS / SCADA security assessment evaluates the four critical foundational components of your operational technology ecosystem. We ensure that your controller logic, supervisory software, engineering workstations, and legacy protocols are resilient against modern exploitation techniques.
Supervisory Systems (SCADA/HMI)
Securing human-machine interfaces, kiosks, and plant data archives against unauthorized access.
Industrial Controllers (PLC/RTU/DCS)
Evaluating controllers for logic configuration flaws, weak authentication, and unpatched firmware.
Industrial Protocols
Analyzing vulnerability to command injection and safety overrides across legacy industrial communications.
Engineering & Field Devices
Evaluating engineering workstations for privilege escalation and physical field device tampering.
Our ICS Security Methodology
Our methodology combines safe configuration audits, passive network capture analysis, and physical-security-conscious threat modeling to identify OT vulnerabilities without risking plant uptime.
Discovery &
Component Mapping
We passively identify all operational assets, discovering PLCs, HMIs, and historians without active scanning that could impact legacy controls.
Protocol &
Traffic Audit
We evaluate network communications for legacy protocols (Modbus, DNP3) to identify lack of encryption, authentication, and vulnerability to replay attacks.
Vulnerability
Analysis
We audit firmware, key switch modes, protocol integrity (Modbus, DNP3), and HMI authentication configurations against known exploitation paths.
Process & Safety
Threat Model
We analyze potential cyber-physical impact scenarios, assessing vulnerability to control hijacking, rogue command injection, or safety instrumentation bypasses.
Remediation
Roadmap
We deliver prioritized remediation blueprints for industrial engineers, focusing on offline patching, network segment isolation, and secure boundary VPNs.
What You Receive
We provide more than just a list of bugs—you receive a comprehensive operational hardening roadmap and formal industrial compliance attestation.
"An in-depth analysis of controller vulnerability, HMI exposure, and legacy protocol risks, with proof-of-concept testing to eliminate false positives. We provide high-fidelity reporting that secures your operational components."
"An in-depth analysis of controller vulnerability, HMI exposure, and legacy protocol risks, with proof-of-concept testing to eliminate false positives. We provide high-fidelity reporting that secures your operational components."
Why Choose Arridae
We bridge the gap between traditional IT cybersecurity and critical infrastructure OT safety—delivering safe, expert, and framework-aligned security assessments that protect your plant's availability.
OT & ICS Cyber-Physical Expertise
Deep-dive assessment by engineers trained in industrial operations, ensuring full awareness of legacy controller quirks and safety boundaries.
Zero-Impact, Safe Testing Methods
We prioritize passive traffic analysis, offline configuration audits, and safe physical simulations to avoid unexpected plant downtime or resource crashes.
Component & Protocol Depth
A dedicated focus on the vulnerabilities of PLCs, HMIs, and legacy communications, bypassing high-level network checks for real operational risks.
Industrial Remediation Advisory
We provide engineering-centric remediation plans that work within maintenance windows, avoiding operational disruptions while securing legacy devices.
IEC 62443 & NIST Frameworks Alignment
Assessments designed around global automation standards, ensuring compliance and robust security controls for corporate and regulatory audits.
Critical Asset Surface Visibility
Identifying shadow OT components, connected diagnostic terminals, and legacy engineering stations to shrink your overall process blast radius.
“In industrial operations, safety is the primary metric— security is what guarantees it. ”
Secure Your Operational Technology Today
Industrial Security Q&A
Commonly asked questions about our ICS / SCADA security assessment, testing safety controls, and OT operational delivery.