A Cyberattack on Your Plant Doesn't Stop at the Firewall.
Energy and manufacturing operations run on systems that were never built to be connected — and attackers know it. Atumcell tests your PLCs, SCADA, HMIs, and OT networks the way a real adversary would, without touching production. You get a clear picture of what's exposed, what's critical, and how to fix it — mapped to IEC 62443, NIST SP 800-82, and NERC CIP.
What We Test
Built for energy and manufacturing environments where downtime is not an option.
OT-native testing methodology
We test PLCs, HMIs, RTUs, SCADA, and historian servers using industrial protocols — Modbus, DNP3, EtherNet/IP, OPC-UA — not repurposed IT tools.
Deep experience with Siemens, Rockwell, Schneider Electric, and Honeywell.
Production-safe by design
Passive reconnaissance and read-only probing keep your operations running. Active tests happen in isolated lab environments or agreed maintenance windows.
Production continuity is a requirement, not an afterthought.
Audit-ready compliance output
Every finding is mapped to IEC 62443, NIST SP 800-82, and NERC CIP with a prioritised remediation roadmap your team can act on immediately.
Ready for regulatory submissions and cyber insurance reviews.
All OT tests require signed Rules of Engagement (ROE) and plant approvals. Non-disruptive defaults apply unless explicitly authorized.
Trusted. Tested. Empowering
Proven security for industrial control systems, tested safely.
OT Specialists
Deep expertise in industrial control systems and critical operations.
Compliance Support
Stay aligned with strict industry and regulatory standards.
Safe Testing Methods
Simulated attacks with zero disruption to production.
Actionable Results
Clear fixes and guidance for critical vulnerabilities.
Insight
Stay ahead with the latest publications, research briefs, and expert perspectives on cybersecurity.
Web App Penetration Testing
Driving Portfolio-wide Value with Cybersecurity
Atumcell Publications
Explore our latest whitepapers, case studies, and reports designed to strengthen security strategy.
Frequently Asked Questions
OT refers to the hardware and software that monitors and controls physical processes in industries like manufacturing, energy, utilities, pharmaceuticals, and critical infrastructure. This includes systems such as PLCs, SCADA, HMIs, RTUs, sensors, and industrial control systems (ICS). Unlike IT, which manages data and business operations, OT is responsible for keeping real-world operations running safely and continuously.
We test PLCs, HMIs, RTUs, SCADA systems, historian servers, and OT network infrastructure including Purdue model layers 0–3. We have deep experience with Siemens, Rockwell, Schneider Electric, and Honeywell platforms.
No. We use passive reconnaissance and non-disruptive probing techniques. Any active testing is performed in isolated lab environments or during agreed maintenance windows. Production safety is built into every stage of our methodology.
OT environments have fragile, real-time systems where standard IT scanning tools can cause unexpected behavior or even process shutdowns. We use specialised OT tools designed for industrial protocols — Modbus, DNP3, EtherNet/IP, OPC-UA — and follow IEC 62443 safety requirements throughout.
Findings are mapped to IEC 62443, NIST SP 800-82, and NERC CIP. Our reports are structured for regulatory submissions, insurance assessments, and audit evidence — so your team can act on them immediately.
We specialise in energy (power generation, oil & gas, utilities) and manufacturing (discrete and process manufacturing, food & beverage, pharmaceuticals). These environments demand a different approach — one that understands both the cyber risk and the operational consequences.
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