Cybersecurity for OT and Industrial Environments
Specialized protection for industrial control systems (ICS), SCADA, PLCs, and operational technology environments.
Diagram readout
- ITL4–L5 · Business IT
- IDMZIDMZ closed · traffic via monitored conduit
- OTL0–L3 · Operational technology
Reference architecture — adapted to each plant's real topology.
The challenge
Operational technology (OT) environments — factories, power plants, distribution networks, water and transport infrastructure — are increasingly connected to IT networks and the Internet. This IT/OT convergence vastly expands the attack surface of systems designed decades ago without cybersecurity in mind.
OT systems have unique characteristics that make traditional IT security approaches insufficient or even dangerous: they cannot tolerate downtime for patching, they use proprietary industrial protocols (Modbus, OPC, DNP3), they have 15-25 year lifecycles, and a successful attack can have physical consequences — from production shutdowns to risks to human safety.
The NIS2 directive classifies many industrial environments as essential infrastructure, requiring specific cybersecurity measures that most industrial organizations haven't yet implemented.
What makes us different
Four pillars that apply to every service and every solution, not a one-off slogan.
Offensive + defensive + AI
The same team that attacks in the pentest runs the SOC and builds the AI models. Offensive insight informs defense, and AI is applied where we already operate, not bolted on as an extra layer.
Compliance in weeks, not months
HodeiShield, our own platform, automates continuous assessment, control mapping, and evidence generation — so manual work no longer sets the pace of regulatory compliance.
Sovereignty and proximity
Infrastructure on OVHcloud (France/EU). You speak with the people who sign off on the work, not an account manager who forwards your request to another department.
Our own product
HodeiShield isn't a third-party product we resell: we build and operate it ourselves, and that's what lets us offer faster compliance and evidence that's always current.
Our approach
Our OT security approach respects the operational constraints of industrial environments. Unlike generic IT solutions, we don't impose destructive patching cycles: we begin with a non-intrusive assessment that maps all OT assets, IT/OT connections, and communication flows without interfering with production. We identify vulnerabilities and risks specific to the industrial environment.
We implement a security architecture based on the Purdue model and IEC 62443 standards: zone and conduit segmentation, industrial DMZ between IT and OT, passive monitoring of industrial protocol traffic (without modifying flows), and anomaly detection specific to SCADA/ICS environments. Our differentiator is observational monitoring: we establish what is normal in your industrial protocols before alerting on anomalies, rather than applying generic signatures that produce false positives.
We complement technical controls with specialized training for operators and maintenance teams (not generic security awareness, but incident response training for environments that demand decisions in minutes), incident response procedures adapted to OT environments (where physical safety and operational continuity take priority over data integrity alone), and drills that test response capability without affecting production. We document safe exit procedures for integrators and remote access that maintains full auditability without production halts.
How we deliver
Structured methodology for measurable outcomes.
Non-Intrusive Assessment
We map all OT assets, IT/OT connections, and communication flows without interfering with production. We identify vulnerabilities specific to the industrial environment.
Security Architecture
We implement segmentation based on the Purdue model and IEC 62443: zone and conduit architecture, industrial DMZ, passive monitoring of industrial protocols, and SCADA/ICS anomaly detection.
Training & Response
Specialized training for operators, response procedures adapted to OT (physical safety and operational continuity first), and drills without production impact.
Benefits
Tangible outcomes for your organization.
Methodology: how we implement it
Discovery, execution, delivery and follow-up — a clear path to continuous operation.
OT inventory
Passive asset and protocol discovery.
Segmentation
Purdue model, IDMZ, and microsegmentation.
Monitoring
Passive probes, anomaly detection, OT playbooks.
Evolution
Impact-free drills and continuous improvement.
Operational example
A real scenario of how we work, not a marketing figure.
An external integrator needs one-off remote access to a PLC for a firmware update. The access goes through the industrial DMZ, is scoped to the agreed maintenance window, and is watched by the passive probes; if the traffic deviates from the expected pattern for that industrial protocol, an alert fires without production ever stopping.
Compared to a generalist integrator
No names — here's how we work differently, with verifiable facts.
| Criteria | Generalist integrator | Hodeitek |
|---|---|---|
| Focus | Dozens of business lines; cybersecurity is just one of them | 100% cybersecurity and AI |
| Point of contact | An account manager who forwards your request to another department | Direct contact with the founders |
| Regulatory compliance | One-off reports per regulation, manual evidence management | HodeiShield automates evidence and cross-framework NIS2/ENS/DORA mapping |
| Product | Resells third-party licenses | Builds and operates HodeiShield, its own platform |
Frequently asked questions
What's your response SLA?
How long does this take to roll out on my plant floor?
What about legacy equipment that's been running for 15-20 years?
Can OT security be assessed without stopping production?
Why isn't traditional IT security enough for OT?
Does NIS2 apply to industrial environments?
How is OT security priced?
How are you different from a generalist integrator?
Does this only apply to heavy industry?
Protect your industrial infrastructure
Talk to our team to evaluate how this solution can protect your organization.
Response within 24h
Complementary services
Related solutions
Third-Party & Supply Chain Risk Management
Assess, monitor, and govern the cybersecurity risk introduced by your vendors, third-party software, and your organization's Nth-party dependencies.
Ransomware Protection and Response
Hodeitek's team are Spanish regulatory specialists as well as ransomware responders: the controls below apply everywhere, and where we reference Spain's National Security Framework (ENS, set by Spain's National Cryptologic Center, CCN) or the EU's DORA regulation, that's Spain- or EU-specific context for organizations operating there or in its regulated sectors. Comprehensive strategy for prevention, early detection, and rapid response to ransomware attacks.