VajraSec Technologies
Securing
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OT Architecture & Protection

Industrial Security

Comprehensive network defense for industrial environments.

Cisco
Fortinet
Palo Alto
Siemens
Rockwell
Wireshark
OT Network Security
Assess & Protect
Secure Your OT Network

Industrial cybersecurity tools, frameworks, and vendor platforms leveraged across our engagements

Wireshark

Wireshark

Protocol Deep Packet Inspection

Decodes Modbus, DNP3, CIP, and S7comm without production impact.

Wireshark
Splunk OT

Splunk OT

Industrial Telemetry & SIEM

Centralized logging and correlation for plant-wide operational visibility.

Splunk OT
Fortinet

Fortinet

Ruggedized Perimeter Protection

Industrial firewall rule validation and Purdue model segmentation.

Fortinet
Palo Alto Networks

Palo Alto Networks

Zero Trust Industrial Defense

App-ID inspection for OT protocols and granular access control policies.

Palo Alto Networks
Siemens SIMATIC

Siemens SIMATIC

ICS Engineering Baseline

Hardware configuration review and firmware vulnerability gap analysis.

Siemens SIMATIC
Rockwell Automation

Rockwell Automation

ControlLogix & PLC Defense

FactoryTalk security architecture and Allen-Bradley hardening baselines.

Rockwell Automation
Cisco Industrial

Cisco Industrial

Hardened Network Switching

Substation and plant-floor micro-segmentation aligned with IEC 62443.

Cisco Industrial
Schneider Electric

Schneider Electric

EcoStruxure Automation

Modicon PLC protection and Triconex safety instrumented system reviews.

Schneider Electric
Elastic / ELK

Elastic / ELK

Telemetry Search & Analytics

High-speed query engine for industrial anomaly and threat hunting.

Elastic / ELK
Kali Linux OT

Kali Linux OT

Controlled Assessment Tools

Passive, safety-first reconnaissance tools for industrial networks.

Kali Linux OT
Grafana OT

Grafana OT

Operational Dashboards & Metrics

Visualizing industrial network health, sensor flows, and security alerts in real time.

Grafana OT
Wireshark

Wireshark

Protocol Deep Packet Inspection

Decodes Modbus, DNP3, CIP, and S7comm without production impact.

Wireshark
Splunk OT

Splunk OT

Industrial Telemetry & SIEM

Centralized logging and correlation for plant-wide operational visibility.

Splunk OT
Fortinet

Fortinet

Ruggedized Perimeter Protection

Industrial firewall rule validation and Purdue model segmentation.

Fortinet
Palo Alto Networks

Palo Alto Networks

Zero Trust Industrial Defense

App-ID inspection for OT protocols and granular access control policies.

Palo Alto Networks
Siemens SIMATIC

Siemens SIMATIC

ICS Engineering Baseline

Hardware configuration review and firmware vulnerability gap analysis.

Siemens SIMATIC
Rockwell Automation

Rockwell Automation

ControlLogix & PLC Defense

FactoryTalk security architecture and Allen-Bradley hardening baselines.

Rockwell Automation
Cisco Industrial

Cisco Industrial

Hardened Network Switching

Substation and plant-floor micro-segmentation aligned with IEC 62443.

Cisco Industrial
Schneider Electric

Schneider Electric

EcoStruxure Automation

Modicon PLC protection and Triconex safety instrumented system reviews.

Schneider Electric
Elastic / ELK

Elastic / ELK

Telemetry Search & Analytics

High-speed query engine for industrial anomaly and threat hunting.

Elastic / ELK
Kali Linux OT

Kali Linux OT

Controlled Assessment Tools

Passive, safety-first reconnaissance tools for industrial networks.

Kali Linux OT
Grafana OT

Grafana OT

Operational Dashboards & Metrics

Visualizing industrial network health, sensor flows, and security alerts in real time.

Grafana OT
Wireshark

Wireshark

Protocol Deep Packet Inspection

Decodes Modbus, DNP3, CIP, and S7comm without production impact.

Wireshark
Splunk OT

Splunk OT

Industrial Telemetry & SIEM

Centralized logging and correlation for plant-wide operational visibility.

Splunk OT
Fortinet

Fortinet

Ruggedized Perimeter Protection

Industrial firewall rule validation and Purdue model segmentation.

Fortinet
Palo Alto Networks

Palo Alto Networks

Zero Trust Industrial Defense

App-ID inspection for OT protocols and granular access control policies.

Palo Alto Networks
Siemens SIMATIC

Siemens SIMATIC

ICS Engineering Baseline

Hardware configuration review and firmware vulnerability gap analysis.

Siemens SIMATIC
Rockwell Automation

Rockwell Automation

ControlLogix & PLC Defense

FactoryTalk security architecture and Allen-Bradley hardening baselines.

Rockwell Automation
Cisco Industrial

Cisco Industrial

Hardened Network Switching

Substation and plant-floor micro-segmentation aligned with IEC 62443.

Cisco Industrial
Schneider Electric

Schneider Electric

EcoStruxure Automation

Modicon PLC protection and Triconex safety instrumented system reviews.

Schneider Electric
Elastic / ELK

Elastic / ELK

Telemetry Search & Analytics

High-speed query engine for industrial anomaly and threat hunting.

Elastic / ELK
Kali Linux OT

Kali Linux OT

Controlled Assessment Tools

Passive, safety-first reconnaissance tools for industrial networks.

Kali Linux OT
Grafana OT

Grafana OT

Operational Dashboards & Metrics

Visualizing industrial network health, sensor flows, and security alerts in real time.

Grafana OT
Wireshark

Wireshark

Protocol Deep Packet Inspection

Decodes Modbus, DNP3, CIP, and S7comm without production impact.

Wireshark
Splunk OT

Splunk OT

Industrial Telemetry & SIEM

Centralized logging and correlation for plant-wide operational visibility.

Splunk OT
Fortinet

Fortinet

Ruggedized Perimeter Protection

Industrial firewall rule validation and Purdue model segmentation.

Fortinet
Palo Alto Networks

Palo Alto Networks

Zero Trust Industrial Defense

App-ID inspection for OT protocols and granular access control policies.

Palo Alto Networks
Siemens SIMATIC

Siemens SIMATIC

ICS Engineering Baseline

Hardware configuration review and firmware vulnerability gap analysis.

Siemens SIMATIC
Rockwell Automation

Rockwell Automation

ControlLogix & PLC Defense

FactoryTalk security architecture and Allen-Bradley hardening baselines.

Rockwell Automation
Cisco Industrial

Cisco Industrial

Hardened Network Switching

Substation and plant-floor micro-segmentation aligned with IEC 62443.

Cisco Industrial
Schneider Electric

Schneider Electric

EcoStruxure Automation

Modicon PLC protection and Triconex safety instrumented system reviews.

Schneider Electric
Elastic / ELK

Elastic / ELK

Telemetry Search & Analytics

High-speed query engine for industrial anomaly and threat hunting.

Elastic / ELK
Kali Linux OT

Kali Linux OT

Controlled Assessment Tools

Passive, safety-first reconnaissance tools for industrial networks.

Kali Linux OT
Grafana OT

Grafana OT

Operational Dashboards & Metrics

Visualizing industrial network health, sensor flows, and security alerts in real time.

Grafana OT
Engagement Scope

Key components of our OT Network Security

A structured, defined delivery model ensuring you receive actionable outputs and tangible improvements to your operational security posture. Built specifically for industrial automation and critical infrastructure without risking production uptime.

Industrial Network Topology Review

Industrial Network Topology Review

Inspect switching fabrics, trunk links, and routing boundaries across plant control layers.

Purdue Model Defense Enforcement

Purdue Model Defense Enforcement

Implement strict segregation separating Level 1/2 controller communications from Level 3 supervisory networks.

Industrial Firewall Deployment

Industrial Firewall Deployment

Configure ruggedized perimeter firewalls with protocol-specific DPI inspection for industrial traffic.

Intrusion Detection (IDS) Integration

Intrusion Detection (IDS) Integration

Deploy passive network taps feeding detection engines to identify anomalies and unauthorized commands.

Network Resilience & Redundancy Audit

Network Resilience & Redundancy Audit

Verify Ring topology (MRP/REP), failover convergence times, and network loop prevention protocols.

OT Network Security Operational Challenge
The Operational Challenge

Protect your infrastructure from evolving threats.

Comprehensive network defense for industrial environments.

OT SECURITY METHODOLOGY

Proven 4-Stage Methodology for OT Network Security

Our structured engineering methodology is designed specifically for operational technology and industrial control environments. Every phase is executed passively with strict change governance, ensuring zero disruption to live manufacturing and continuous compliance with IEC 62443.

Zero operational disruption to live plant controls
Aligned with IEC 62443 & Purdue architecture
Deterministic, engineering-led deliverables
Get Started
1

Topology Assessment

Analyzing switching fabrics, redundant ring topologies (REP/MRP), and VLAN layouts across all manufacturing cells.

2

Zero-Trust Architecture

Engineering defense-in-depth segmentation, conduit controls, and encrypted management channels across the plant.

3

Switch Hardening

Configuring port security, BPDU guard, and management access lists on managed industrial Ethernet switches.

4

Failover Validation

Conducting non-disruptive checks to ensure recovery protocols maintain deterministic sub-second convergence.

Target Audience

Who Benefits Most From This Engagement?

Engineered for plant operations, control systems engineers, and cybersecurity leaders responsible for operational resilience.

Industrial Network Architects

Industrial Network Architects

Implement resilient network topologies, Ring failover redundancy, and Purdue model zoning for plant reliability.

OT Security Engineers

OT Security Engineers

Deploy industrial firewalls and network intrusion detection engines tuned specifically for industrial protocols.

Plant Operations Leaders

Plant Operations Leaders

Ensure operational technology traffic is shielded from broadcast storms, unauthorized routing, and external intrusion.

Ready to Secure Your Plant Floor?

Speak with our OT cybersecurity experts to build a strategy that protects your critical processes.

BOOK OT SECURITY ASSESSMENT •