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OT Asset

Inventory Assessment

An OT Asset Inventory Assessment is the systematic process of identifying, documenting, and classifying all operational technology (OT) hardware, software, and network devices within an industrial environment. It ensures comprehensive visibility into assets like PLCs, HMIs, and sensors to identify vulnerabilities, manage risk, and bolster cybersecurity
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Key Aspects of OT Penetration Testing

Full OT asset discovery
Vulnerability identification and prioritisation
Baseline for compliance (e.g. NIS2, IEC 62443)
Board-ready insights into risk

Methodology

01

Discover

Identify assets and connected systems

02

Assess

Scan for vulnerabilities and compliance gaps

03

Prioritise

Rank issues by impact and likelihood

04

Report

Provide executive and technical outputs

Deliverables

01

OT asset inventory

02

Vulnerability & risk report

03

Prioritised remediation roadmap

04

Executive summary

Deliverables listed are provided as a guideline and will vary depending on the scope of work, agreed Statement of Work (SOW), and programme requirements.
OT Security

Key Aspects of
OT Asset Inventory Assessment

Comprehensive identification, classification, and contextualization of OT assets to improve visibility, strengthen cybersecurity, and support operational resilience across industrial environments.

Discovery
01

Discovery

Using a combination of automated and specialized tools such as passive network and asset monitoring, OT-safe active scanning, network and system architecture reviews, and site walkthroughs to create a comprehensive and up-to-date inventory of OT assets.

Asset Categorization
02

Asset Categorization

Developing a structured taxonomy to organize OT assets based on their function, operational role, and criticality to industrial processes and business operations.

Data Collection
03

Data Collection

Gathering key attributes for each asset including IP address, firmware version, manufacturer, model, operating system, end-of-life status, and physical location.

Security Contextualization
04

Security Contextualization

Linking discovered devices to known vulnerabilities by Identifying unpatched software, weak passwords, insecure protocols, and misconfigurations while leveraging known CVE databases, CISA’s ics-advisories , and OEM specific advisories on vulnerabilities.

Key Aspects of OT Penetration Testing

01

Focus on Safety and Uptime

Unlike traditional IT Penetration testing, which prioritizes data confidentiality, and is intrusive to network and systems , OT Penetration testing is carefully conducted to ensure zero disruption to production, machinery, and safety systems.

02

Scope

Covers specialized industrial equipment, legacy systems, and network protocols common in manufacturing, energy, and utility and other industrial sectors.

03

Methodology

Follows frameworks like MITRE ATT&CK for ICS ( Add link MITRE ATT&CK for ICS) to map techniques, including reconnaissance, initial access from IT networks, and exploiting control systems.

04

Deliverables

Provides a comprehensive report with risks, technical vulnerabilities, and actionable recommendations to secure the OT environment.

05

Purpose

Validates defenses and strengthens security against threats like ransomware spreading from IT to OT , Insecure Remote Access and various other threat scenarios applicable to ICS environment.

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