OT Security
& Resilience
Tesorion OT Resilience helps organizations in production environments such as the manufacturing industry, food, energy and critical infrastructure to make their OT environments demonstrably resilient to cyber threats. We not only make organizations safer, but also bring them administratively in control and make them operationally resilient.
Van insight, advice and design upto deployment, monitoring, detection, response, and recovery. Our approach minimizes unplanned downtime and structurally shortens the Mean Time to Recovery (MTTR).
OT Resilience is about continuity, safety and resilience. Continuous growth in adulthood.
From prevention to resilience, from tooling to direction and from projects to continuous control.
What OT is really about
Four critical themes for production environments
Can we continue to produce and work safely, or restart quickly in a controlled manner after a disruption?
- Continuity of production
- Safety of people, environment and product quality
- Limiting downtime by shortening MTTR
- Fast and controlled restart after incidents
Dealing with what you can't patch
- Legacy systems and limited patchability
- IT-OT integration and a growing attack surface accelerated by 5G and IoT
- Impact reduction instead of complete prevention
From technology to administrative control
- Insight into OT assets and data flows
- Insecure remote access and chain dependency
- Demonstrable risk management (NIS2, IEC-62443, ISO27001, BIO2)
When things go wrong, direction counts, not technology
- OT incident response and crisis organization
- Hybrid threats require hybrid protection
- Chain dependency and reputational risk
Task Force Hybrid Shield & Nassau420
Task Force Hybrid Shield, conducted in collaboration with Nassau420, focuses on preparing organizations for hybrid incidents where OT, IT, people, and physical processes come together. The focus is not only on technology, but explicitly on crisis management, decision-making and resilience.
The five stages of
Integral OT Resilience
Tesorion supports industrial organizations in OT resilience, from insight and design to monitoring, detection, response and controlled recovery.
services
- Red Teaming & Pentesting
- OT Quick Scan & OT Risk Assessment
- Asset & vulnerability discovery
Partners
As a high-quality service provider, Tesorion is technology agnostic. We design OT architectures based on proven, best-in-class technologies that match the organization's context, threats, and risks.
Segmentation & Secure Access
The foundation of OT Resilience
Within a Secure Nerwok Design, segmentation and secure access form the basis for limiting incident impact and ensuring continuity. Tesorion applies these measures according to the zones & conduits principle, tailored to process criticality and residual risk.
services
- OT Firewall
- Network segmentation
- Data Diodes
- Secure Remote Access
- Secure Network Access
Partners
Real-time insight into anomalies and rapid, controlled response in IT OT and IoT.
Service
- Manages Detection & Response for IT, OT, and IoT
Partners
- Vectra AI Match
- Palo Alto Networks
- Immunity
- Microsoft Defender for OT
Detection is always linked to pre-configured escalation and decision structures.
services
- OT Incident Response (CERT)
- Realistic OT and hybrid simulations
- Management, management and operation training
Partners
OT resilience is not a project, but a structural improvement process.
Tesorion supports with:
- Continuous monitoring and evaluation
- Reporting on administratively relevant KPIs (downtime, MTR, residual risk)
- Structural improvement of OT Resilience and resilience
Immunity Network Access Control (NAC) & OT Monitoring
Immunity NAC provides controlled and enforceable network access for OT environments and combines asset insight, access control, and detection into one OT-friendly solution. The technology is designed for environments with legacy systems, limited patching options, and 24/7 processes without disrupting operations.
Why Tesorion for OT security?
Hero Group
Mention the name Hero and you immediately think of Cassis, jam, baby or toddler food. This international organization is active in Europe, North & South America, North Africa, and Asia, among others. Nevertheless, the sense of family is still at the heart of Hero's business operations. This includes a safe workplace, both physically and digitally. For digital safety, Hero relies on Tesorion's experts.
Royal Smilde
We have 5 production locations in the Netherlands, each with their own characteristics and characteristics. This means different machines per location, but also PCs, printers and mobile phones. Of course, all these devices are connected to our network. In addition, we also have to deal with guests and suppliers per location.
Compumatics MagicTwin Data Diode
The Compumatica MagicTwin Data Diode enables physically enforced one-way data traffic from OT to IT, without feedback. Data can be securely accessed directly from OT to IT or SOC, without the use of an I-DMZ if required.
Quick Scan
Do you want to know how resilient your OT environment really is?Plan one OT Quick Scan whether OT Risk Assessment.
Trusted by leading organizations in the Netherlands
Nice to meet you, we are Tesorion
Tesorion is a 100% Dutch, independent cybersecurity service provider. We combat cybercrime and minimize business risks. Tesorion protects your organization 24/7 thanks to our technology and more than 100 experts.
