Does this replace the existing IT security stack?

No. OT security overlays the existing IT stack. Nozomi, Claroty and Dragos detections flow into the existing SIEM (Microsoft Sentinel, Splunk, IBM QRadar or Google Security Operations), existing NGFWs enforce Purdue zoning, and existing PAM tooling brokers remote access. The engagement focuses on integration rather than rip-and-replace.

Can passive OT monitoring be deployed safely?

Yes. Passive network taps and SPAN-port mirroring introduce no traffic on the OT network. Active discovery, when used at all, is limited to non-critical segments with plant-team approval and follows the same ISA and IEC change-control processes as any OT project.

How does the programme map to IEC 62443, NIS2 and NERC-CIP?

Every control deployed maps to IEC 62443-3-3 and 4-2 requirements. NIS2 essential and important entity obligations, NERC-CIP for utilities and TSA pipeline directives are supported through pre-mapped evidence packs and audit workflows tailored to the customer's regulatory scope.

Do you only deploy from scratch, or can you fix what we already have?

Both. Most of our engagements start with an audit of the existing stack — rulebases, policies, coverage, integrations, backups — and a fixed-scope remediation sprint against the findings. We only recommend replacement when the current tooling genuinely can't get you where you need to be.

What happens after go-live — do you support and maintain what you deploy?

Yes. Implementations can be wrapped with a Jiva Technologies AMC covering L1/L2/L3 support with agreed response tiers, preventive maintenance, firmware and policy hygiene, vendor-TAC escalation, licence renewal, and periodic architecture reviews. Ongoing monitoring, detection, and response can be extended under a separately contracted Managed Security engagement scoped to the customer's coverage requirements.

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OT & IoT Cybersecurity

Secure the plant. Prove the posture. Protect production safety.

Jiva Technologies designs, integrates and supports OT and IoT cybersecurity programmes covering passive asset visibility with Nozomi Networks, Claroty and Dragos, Purdue-model segmentation, per-device X.509 identity, firmware and patch lifecycle, PAM-brokered remote access, OT-aware SOC monitoring and incident-response playbooks aligned to IEC 62443, NIS2, NIST 800-82 and sector regulations.

"Every device seen. Every zone enforced. Every session recorded."

Discovery Model

Passive by default

Non-intrusive visibility across PLC, RTU, HMI and IoT devices.

Regulatory Coverage

Standards-aligned

IEC 62443, NIS2, NIST 800-82, NERC-CIP and TSA guidance.

Detection & Response

SOC-integrated

Nozomi, Claroty and Dragos feeding Sentinel, Splunk, QRadar and Google Security Operations.

What we deliver

OT / IoT Asset Visibility
Passive discovery through Nozomi Networks, Claroty and Dragos to inventory every PLC, RTU, HMI, IoT sensor and rogue device without disturbing production traffic.
Purdue-Model Segmentation
Zone and conduit design per IEC 62443 enforced by NGFW and industrial firewalls between enterprise, DMZ, supervisory and control layers.
Per-Device Identity
X.509 certificates, TPM-backed keys and device attestation so each asset is uniquely identified, revocable and enrolled through a controlled lifecycle.
Firmware & Patch Lifecycle
Vulnerability tracking against ICS-CERT and CISA advisories, patch-window planning, signed OTA rollout and rollback across equipment historically considered unpatched.
OT-Aware Threat Monitoring
Nozomi, Claroty and Dragos detections correlated in Microsoft Sentinel, Splunk, IBM QRadar and Google Security Operations for one SOC view across IT and OT with OT-aware playbooks.
Secure Remote Access
Vendor and internal remote access brokered through PAM tooling such as CyberArk and Delinea, with session recording, dual approval and no standing VPN into control networks.
IEC 62443 & NIS2 Alignment
Programme design against IEC 62443, NIS2, NIST 800-82 and sector regulations including NERC-CIP and TSA pipeline directives, with auditable evidence built into the operating model.
OT Incident Response
OT-specific playbooks, tabletop exercises and response procedures covering safe-mode operations, forensic capture and coordination with plant safety, not just IT.

Signals we hear

Why teams call us

4 recurring gaps

OT estate invisible to enterprise security tooling
Enterprise SIEM, EDR and identity platforms cover IT endpoints and servers but do not see PLCs, RTUs, HMIs, gateways and IoT devices running the physical process.
Flat networks between IT, DMZ and control layers
Enterprise, DMZ, supervisory and control networks share routing paths and credentials, with no Purdue-model zoning or industrial firewall enforcement.
Vendor remote access via standing VPN
Third-party engineers connect through shared or long-lived VPN accounts, without session recording, approval workflows or per-command authorisation.
Firmware and vulnerability programme absent for OT
Vulnerabilities in industrial equipment are tracked ad hoc, patch windows are not planned, and signed OTA processes do not exist for controllers and gateways.

How we engage

Our approach

Deliver OT and IoT security from visibility and Purdue-model design through identity, remote access, SOC integration and incident-response readiness.

Assess
Inventory OT and IoT assets, review Purdue-model posture, remote-access practice, patch and firmware processes, SIEM integration and IEC 62443 and NIS2 obligations.
Design
Define visibility platforms, zone and conduit design, per-device identity, PAM-brokered remote access, OT-aware detection rules and incident-response playbooks.
Integrate
Deploy passive visibility, industrial firewalls and PAM controls; forward detections to the SOC; and enable plant and IT teams on OT-aware playbooks and safe-mode procedures.
Operate & Improve
Maintain vulnerability, firmware and certificate lifecycle; refine detections; run tabletop exercises; and evolve the programme against changing regulations and threats.

End-to-End IT Integration and Support

From assessment and solution design through implementation, remediation, ongoing support, and lifecycle optimization.

Fix What's Broken — Remediation Sprints

Offline sensors, unreliable gateways, broken protocol integrations, duplicate or missing telemetry, dashboard drift, expired certificates, alarm floods, or an IoT / OT pilot that never scaled? Jiva Technologies runs fixed-scope remediation sprints across the device, network, platform and integration layers.

Sensor, meter and gateway health audit, firmware baselining and connectivity fixes
Protocol integration cleanup (BACnet, Modbus, OPC UA, MQTT, LoRaWAN, LTE-M)
Data-model, KPI, dashboard and alarm rationalisation with tag / battery lifecycle fixes

Request a remediation scope

Support & Maintenance — AMC-Backed

Keep IoT, OT and smart-building estates running after handover — device health, platform hygiene, certificate and firmware lifecycle and vendor coordination under a Jiva AMC.

L1 / L2 / L3 technical support for leading IoT, edge, BMS, SCADA and analytics platforms
Preventive maintenance, sensor calibration, firmware, configuration backup and licence renewal
Vendor escalation, periodic service reviews and documentation refresh

Explore AMC & support contracts

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Bring OT security to the standard of the enterprise SOC

Secure the physical estate against operational and cyber risk

Review OT and IoT asset inventory, network zoning, remote-access practice, patch and firmware processes, SOC integration and IEC 62443 or NIS2 obligations. Jiva Technologies can assess, design, implement, integrate, remediate and support a phased OT and IoT cybersecurity programme with production safety first.

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