Advanced OT Security & Resilience
Protect your critical infrastructure and industrial control systems from existential threats. We deploy robust OT security frameworks to secure your SCADA networks, ensure physical safety, and maintain continuous production uptime.
Core Capabilities
Built to protect industrial environments without disrupting production.
Purdue Model Segmentation
Implement strict network segmentation between your IT and OT environments to prevent lateral movement of threats into the plant floor.
Industrial Threat Detection
Passive, continuous monitoring of industrial protocols (Modbus, DNP3, CIP) to detect anomalies without adding latency to mission-critical systems.
Legacy System Protection
Secure vulnerable, unpatchable legacy machinery and PLCs with compensating controls and network-level isolation.
What's included in our OT Security Services?
Everything you need to secure your industrial operations and maintain uptime.
- OT Network Asset Discovery & Inventory
- ICS Vulnerability & Risk Assessments
- IT/OT Network Segmentation Design
- Passive Industrial Threat Monitoring
- Secure Remote Access for Vendors/OEMs
- OT-Specific Incident Response Playbooks
Active Threat Monitoring
Watch our continuous monitoring safeguard your PLCs, SCADA systems, and HMIs in real-time. We detect protocol anomalies and suspicious instructions without adding latency or risk to your mission-critical production processes.
Production Uptime is Non-Negotiable
In a corporate IT environment, a cyber breach means data loss. In an OT environment, a breach can mean physical damage, environmental hazards, and millions in lost manufacturing output. Traditional IT security tools like active network scanning can literally crash legacy PLCs and halt production lines. We build bespoke OT security architectures that passively monitor and protect your plant floor without ever risking operational disruption.
- Air-gapping and secure conduits for vendor remote access
- Zero-impact passive network monitoring of industrial protocols
- Bridging the cultural gap between IT security and Plant Engineering teams
“You cannot secure a manufacturing plant with tools designed for an office. We deploy specialised OT defences that prioritise availability and physical safety above all else.”
Our Methodology
How we deliver resilient security for industrial operations.
Discover & Map
We passively map every connected device on your plant floor without active polling that could disrupt legacy PLCs.
Segment & Isolate
We implement the Purdue Model, strictly separating corporate IT from industrial OT to halt lateral threat movement.
Monitor & Respond
Continuous, zero-latency monitoring of ICS protocols to catch anomalies before they impact physical production.
Why choose Geostream for OT?
Industrial Expertise
We understand the critical differences between a web server and a robotic arm. Our engineers speak both IT and OT natively.
Zero-Disruption Guarantee
We prioritise system availability and physical safety, ensuring our security controls never cause a plant shutdown or latency spike.
Vendor Agnostic
We work with all major ICS/SCADA vendors (Siemens, Rockwell, Schneider Electric) to secure your unique heterogeneous environments.
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