Intrusion detection, built for rail

Delta

Intrusion detection processed at the edge, designed for rail on-board and wayside applications.

Delta product illustration
Overview

What it does

Delta shows you your network topology and what runs on it, then alerts when behaviour deviates from the baseline. It combines host and network monitoring in one system. Delta runs on more than 3,200 rail vehicles worldwide. A vehicle is an individual rail car; our wider deployment spans more than 1,000 trains across 23+ distinct fleets.

Because Delta detects anomalies against a learned baseline rather than relying on signatures alone, it can flag attacks that signature databases have never seen, including behaviour specific to rail protocols.

Benefits

Key benefits

Detection designed for rail

Host and network monitoring combines rail-protocol awareness with behavioural baselines across modern on-board and wayside systems, typically with Ethernet networks.

Proven rail integration

Delta runs on 3,200+ rail vehicles, including software deployments on Westermo switches and existing on-board equipment. Behavioural changes can be detected within minutes; events reach shore when connected.

Evidence for customer acceptance

The Siemens Mobility customer statement below describes Delta’s contribution to train monitoring. Validate each integration against the operator’s acceptance requirements.

Reduce IDS implementation costs

Software deployment on compatible existing hardware can reduce additional equipment and integration costs.

Broad coverage with efficient edge processing

Combine host and network monitoring across on-board and wayside systems. TRDP runs over IP; MVB and CAN coverage requires hardware connected to those buses. Detection stays on the vehicle and events are forwarded to shore.

Capabilities

Key capabilities

Host and network detection

Monitor software, ports, logs and critical files alongside network behaviour. TRDP is analysed over IP; MVB and CAN coverage requires hardware connected to those buses.

SIEM integration

CEF feeds and REST APIs plug into your existing security operations.

Resilient to intermittent links

Continuous on-vehicle monitoring that tolerates rail's unreliable, intermittent links.

Low false-positive rate

Machine-learning models tuned on real rolling-stock traffic.

On-board and wayside

One product covers vehicles and trackside infrastructure.

Efficient edge processing

Process detection data on the vehicle and queue events for shore when a connection returns. Delta can support the full 30-year-plus life of the train. Reuse validated baselines across comparable vehicles to reduce rollout work.

CONTROL CENTRE DATA CENTRE ON-BOARD Analyst Data analysis and reporting SOC / NOC agent Alert triage and management RazorSecure back end cloud or on-premises Data aggregation Data processing Data storage Analytics Reporting Data export Dashboard Configuration management SIEM SOAR CMDB Encrypted store-and-forward link: events queue on the train when the connection drops Train Delta On-board systems on the train network, monitored by Delta
How Delta deploys: detection on the vehicle, aggregation in the data centre (cloud or on-premises), analyst and SOC workflows in the control centre.
Role in The Secure Train

Detect everywhere, passively

Delta is the detection layer of The Secure Train: it monitors hosts, network segments and deeper onboard feeds without sitting in the path of train control traffic.

See the full architecture
Operator SOC / SIEM CEF feeds · REST API · SOAR / CMDB RazorSecure Cloud · Dashboard Customer teams · optional analyst service Encrypted, prioritised store-and-forward On-board External interfaces Passenger Wi-Fi LTE / 5G · GSM-R Depot & shore Untrusted SECURITY GATEWAY Safety-critical CAN · MVB buses Delta · MVB IDS TCMS Train control & monitoring Delta Comfort CCTV · PIS · HVAC Delta Passenger Wi-Fi · infotainment Delta Passive monitoring plane: Delta detection & Echo asset status from every zone, no interference with train control Digital Maintenance Gateway: MFA · secure software updates Maintenance engineers: named users, agreed time windows

Plan your integration

A Delta technical pack covering protocol support, the host support matrix and deployment reference architectures is available on request.

Request a technical workshop
“Real-time monitoring and the earliest possible detection of irregularities in the IT and software structure of our trains are the only way to ensure 100 percent fleet availability while maintaining the highest level of cybersecurity. RazorSecure can help us achieve this goal with their expertise and proven solutions.”
Johannes EmmelheinzCEO Customer Service, Siemens Mobility
Rail-specific detection across on-board and wayside systems

Talk to our engineering team

Bring your programme requirements, fleet architecture and risk assessment, including any penetration-test findings. We help train builders meet their operators’ specifications and help operators plan security improvements to existing fleets.

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