Operational Technology is the hardware and software systems that monitor and control industrial equipment, infrastructure, and processes, such as SCADA systems, PLCs, and HMIs. OT environments face unique cyber security challenges, including lack of in-built security, outdated systems and protocols, and remote access risks.
Proactive Vulnerability Detection
Identify security gaps in your Operational Technology before attackers exploit them.
Real-World Threat Simulation
See how your OT systems would hold up against a genuine attack, providing a practical assessment of your readiness for real-world threats.
Strengthened Security Posture
Gain actionable insights to prioritise remediation efforts and enhance the overall resilience of your Operational Technology systems.
Compliance and Assurance
Meet industry standards and regulatory requirements while demonstrating a commitment to protecting sensitive data and critical systems.
Thousands of organisations across the UK trust us, here’s why…
CREST & CHECK Accredited
We are certified for both CREST and CHECK Green Light testing - an achievement not all testing companies can claim.
Clear and Concise Reports
We provide easy-to-understand reports with detailed findings and actionable recommendations.
CREST Infrastructure & App Testing
We are certified in both CREST Infrastructure and Application testing to the highest standards.
Specialised Testing Teams
Developer-trained testers deliver comprehensive app, API, and cloud testing for deeper, more effective results.
Experienced & Senior Consultants
Our team consists of highly experienced, senior consultants and penetration testers with over 15 years of expertise.
We Save You Time and Money
Clients consistently tell us that we deliver higher-quality testing in less time.
Outstanding Communication
We establish dedicated Teams or Slack channels to ensure seamless two-way communication between all.
Forward-Thinking Security
Our team goes beyond identifying vulnerabilities, offering proactive solutions to mitigate future risks.
Types of Operational Technology
Programmable Logic Controllers (PLCs)
PLCs are computers used to control machinery and processes. Testing focuses on firmware, insecure protocols, and access controls.
Human-Machine Interfaces (HMIs)
HMIs allow operators to interact with control systems. Pen testing may identify weak authentication, exposed interfaces, or outdated software.
Supervisory Control and Data Acquisition (SCADA) Systems
SCADA systems manage large-scale industrial operations. Tests target protocols, access, and data integrity.
Distributed Control Systems (DCS)
DCS distributes control functions across multiple autonomous controllers located near the process plant.
Industrial Control Systems (ICS) Networks
These networks connect OT components. Pen testing evaluates segmentation, firewall rules, and protocol-specific weaknesses.
Sensors and Actuators
Components that collect real-time data (e.g., temperature, pressure, flow) or perform physical actions (e.g., opening valves, starting motors).
Remote Terminal Units (RTUs)
RTUs collect data from sensors and transmit it to SCADA systems. Vulnerabilities may include insecure firmware and encryption issues.
Industrial Protocols (Modbus, DNP3, etc.)
Testing involves analysing how these protocols are implemented and whether they are susceptible to spoofing, replay, or injection attacks.
Traditional Testing vs Operational Technology Testing
Operational Technology Penetration Testing
Industrial control systems, manufacturing lines, energy grids, etc.
Traditional IT Penetration Testing
Corporate networks, web apps, endpoints.
Operational Technology Penetration Testing
High; testing must avoid disrupting live operations.
Traditional IT Penetration Testing
Moderate; testing can be more aggressive.
Operational Technology Penetration Testing
Proprietary protocols (e.g., Modbus, DNP3) and legacy devices.
Traditional IT Penetration Testing
Standard protocols (e.g., TCP/IP, HTTP).
Operational Technology Penetration Testing
Passive reconnaissance, tailored exploitation, safety‑first methodology.
Traditional IT Penetration Testing
Active scanning, broad vulnerability coverage.
Operational Technology Penetration Testing
OT engineers, plant managers, compliance officers.
Traditional IT Penetration Testing
IT teams, CISOs, developers.
Why Your Organisation Needs Penetration Testing
Stay Ahead of Cyber Threats
Proactively identify and fix security vulnerabilities before cyber criminals exploit them. Penetration testing helps you stay one step ahead, protecting your business from costly breaches.
Strengthen Your Security Posture
A single weak link can bring down an entire system. Pen testing exposes gaps in your defences, giving you actionable insights to fortify your infrastructure and reduce risk.
Be Compliant & Avoid Fines
Meet regulatory standards like GDPR, PCI DSS, and ISO 27001 with regular security testing. Stay compliant, avoid costly fines, and demonstrate commitment to data protection.
Protect Your Brand & Reputation
Safeguard your organisation from outages and reputational damage by identifying OT weaknesses before attackers exploit them.

OT PEN TESTING SUCCESS STORY
Futaba Manufacturing UK
From safeguarding manufacturing operations to proactive threat detection, Futaba Manufacturing UK (FMUK) relies on CyberLab’s expert solutions to protect their data and systems from evolving cyber risks.
“As a business committed to delivering exceptional quality and reliability to our customers, ensuring the continuity of our operations is paramount. CyberLab’s expertise in safeguarding our organisation against evolving cyber threats has been instrumental in protecting our reputation and maintaining our competitive edge. Their tailored solutions give us the confidence to focus on growth, innovation, and excellence.”
What Your CyberLab Penetration Testing Service Includes?
A step-by-step guide to our security testing services and what you can expect from our team. The way we structure our Pen Tests aligns closely with the steps taken by bad actors to target and compromise your systems. We replicate the approach of real-world adversaries to simulate and evaluate how your systems and processes respond to a cyber attack.
One of our CREST, CHECK, and Cyber Scheme certified consultants will work with you to define the scope of the engagement and ensure that our tests will fulfil your requirements.
Your assigned consultant will gather information on your organisation, including:
- IP addresses of websites and MX records
- Details of e-mail addresses
- Social networks
- People search
- Job search websites
This information will assist in identifying and exploiting any vulnerabilities or weaknesses.
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Once we have identified vulnerabilities, we will attempt to exploit them in order to gain entry to the targeted system.
There are three phases to this stage:
- Exploit – use vulnerabilities to gain access to a system, e.g. inject commands into an application that provide control over the target.
- Escalate – attempt to use the exploited control over the target to increase access or escalate privileges to obtain further rights to the system, such as admin privileges.
- Advance – attempt to move from the target system across the infrastructure to find other vulnerable systems (lateral movement) potentially using escalated privileges from target systems and attempting to gain further escalated privileges and access to the network.
Your Penetration Test Report will detail any identified threats or vulnerabilities, as well as our recommended remedial actions. Threats and vulnerabilities will be ranked in order of importance.
The report will also contain an executive summary and attack narrative which will explain the technical risks in business terms. Where required, we can arrange for your CyberLab engineer to present the report to the key stakeholders within your organisation.
The report will provide information on remedial actions required to reduce the threats and vulnerabilities that have been identified.
At this stage, we can provide you with the additional consultancy, products, and services to further improve your security posture.
One of our CREST, CHECK, and Cyber Scheme certified consultants will work with you to define the scope of the engagement and ensure that our tests will fulfil your requirements.
Your assigned consultant will gather information on your organisation, including:
- IP addresses of websites and MX records
- Details of e-mail addresses
- Social networks
- People search
- Job search websites
This information will assist in identifying and exploiting any vulnerabilities or weaknesses.
Collaboratively administrate empowered markets via plug-and-play networks. Dynamically procrastinate B2C users after installed base benefits. Spectacular visualize customer directed convergence without revolutionary ROI.
Efficiently unleash cross-media information without cross-media value. Quickly maximize timely deliverables for real-time schemas. Spectacular maintain clicks-and-mortar solutions without functional solutions.
CREST, CHECK & Cyber Scheme Certified
CREST (the Council of Registered Ethical Security Testers) is an international accreditation with a strict Codes of Conduct and Ethics. CHECK is the Government-backed accreditation from the National Cyber Security Centre (NCSC) which certifies that a company can conduct authorised penetration tests of public sector systems and networks.
All our penetration testers are certified by CREST, with senior consultants certified by CREST to the highest CCT Level. Our testers are also either CHECK Team Leaders (CTL’s) or Team Members (CTM’s).
Security testers that pass the Cyber Scheme exams demonstrate ‘competence and skill at the highest levels’ as defined by the National Technical Authority for Cyber Security (NCSC).
Our team have decades of combined experience and take pride in operating at the highest level of the industry – conducting a broad range of government and commercial tests – and always aim to go the extra mile.


E-BOOK
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FAQs:
Using a third party to assess your systems allows them to ‘think like an attacker’ and bring a fresh perspective to your cyber security.
Pen Testing can pinpoint weak points in your defences and highlight areas that can be improved using your existing security technology.
Incorporating regular Penetration Tests into your planning helps you to stay on top of your security posture, preserve your brand, and maintain regulatory compliance to standards and regulations including GDPR, PCI DSS, and ISO 27001.
Vulnerability Assessments are used to identify system and software vulnerabilities and provide a high-level overview of overall security posture. They are an effective way for companies who do not have visibility of their security posture to gain a more complete understanding. For organisations with legacy infrastructure, it is a quick and cost-effective way to identify and focus on software and systems that can be fixed easily.
A Penetration Test not only identifies security issues within the company’s infrastructure, systems, and operations, but also exploits these vulnerabilities and, if necessarily, combines them to achieve a specific objective.
For example, if the tester’s objective is to gain internal network access, they would find a vulnerability that allows them to upload files, then another one that lets them find those files, and another one that marries these up to execute something malicious.
It’s not the testing process that matters the most – it’s implementing the remediation actions from the reports to proactively improve your security posture.
Our team of experts can help you demystify a Pen Test report and incorporate the fixes.
Get a Free HackRisk Report today with a trial of our HackRisk platform which does a Dark Web, Recon and Vulnerability Scans of your attack surface >
CREST, CHECK & Cyber Scheme Certified
CREST (the Council of Registered Ethical Security Testers) is an international accreditation with a strict Codes of Conduct and Ethics. CHECK is the Government-backed accreditation from the National Cyber Security Centre (NCSC) which certifies that a company can conduct authorised penetration tests of public sector systems and networks.
All our penetration testers are certified by CREST, with senior consultants certified by CREST to the highest CCT Level. Our testers are also either CHECK Team Leaders (CTL’s) or Team Members (CTM’s).
Security testers that pass the Cyber Scheme exams demonstrate ‘competence and skill at the highest levels’ as defined by the National Technical Authority for Cyber Security (NCSC).
Our team have decades of combined experience and take pride in operating at the highest level of the industry – conducting a broad range of government and commercial tests – and always aim to go the extra mile.
- Stay Ahead of Cyber Threats
Proactively identify and fix security vulnerabilities before cyber criminals exploit them. Penetration testing helps you stay one step ahead, protecting your business from costly breaches.
- Strengthen Your Security Posture
A single weak link can bring down an entire system. Pen testing exposes gaps in your defences, giving you actionable insights to fortify your infrastructure and reduce risk.
- Ensure Compliance and Avoid Fines
Meet regulatory standards like GDPR, PCI DSS, and ISO 27001 with regular security testing. Stay compliant, avoid costly fines, and demonstrate your commitment to data protection.
- Protect Your Brand and Reputation
A security breach can destroy customer trust in seconds. Pen testing helps safeguard your data, keeping your brand untarnished and your customers confident in your security.
Yes. Different frameworks have different requirements.
- ISO 27001 (Information Security Management System)
ISO 27001 is a globally recognised framework for managing information security risks. While penetration testing is not explicitly required, it plays a crucial role in meeting the standard’s risk assessment requirements by identifying weaknesses in systems and strengthening security controls.
- SOC 2 (System and Organization Controls 2)
SOC 2 is a security and privacy framework for companies handling customer data, ensuring they meet trust principles like security and confidentiality. While penetration testing is not mandatory, it provides valuable evidence of strong security practices, helping businesses demonstrate compliance with SOC 2 standards.
- PCI DSS (Payment Card Industry Data Security Standard)
PCI DSS is a mandatory security standard for businesses handling cardholder data, designed to protect against fraud and breaches. Penetration testing is a requirement under PCI DSS, helping organisations identify vulnerabilities in cardholder data environments and ensure security controls are effective.
- DORA (Digital Operational Resilience Act)
DORA is an EU regulation focused on strengthening cyber resilience in financial institutions. It mandates security testing, including penetration testing, to assess and enhance an organisation’s ability to withstand cyber threats, ensuring financial systems remain secure and operational.
- HIPAA (Health Insurance Portability and Accountability Act)
HIPAA is a US law protecting sensitive patient health information (PHI). While it does not explicitly require penetration testing, regular security testing helps healthcare organisations identify and fix vulnerabilities, reducing the risk of breaches and ensuring compliance with HIPAA’s security rules.
- FTC (Federal Trade Commission Regulations)
The FTC enforces consumer protection laws, requiring businesses to implement reasonable security measures to protect customer data. Penetration testing helps companies identify risks, strengthen defences, and demonstrate due diligence in safeguarding sensitive information.


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