“Our plants talk to head office over the open internet.”
Risk: ERP, weighbridge and dispatch data can be read or tampered with in transit.
Service: Site-to-site VPN / SD-WAN
All services
Service · Network Security & VPN
Secure connectivity for every plant, warehouse, field team and machine.
We design, deploy and run the network security that multi-site manufacturers depend on: site-to-site VPN and SD-WAN between plants, secure remote access for staff and machine OEMs, firewalls that separate office IT from plant OT, and round-the-clock monitoring. We work with the equipment you already own, and we schedule every change around your production plan.
Multi-site VPN
Plants, warehouses and head office joined securely
IT / OT segmented
Office threats kept away from machines
Zero-trust remote access
Staff and OEMs reach only what they need
24×7 option
Managed monitoring and response
Most plant networks grew one cable at a time. Attackers know it.
“The machine OEM logs in with a remote-desktop app whenever they like.”
Risk: An unmanaged doorway straight into PLCs and SCADA.
Service: Secure vendor & OEM remote access
“An office laptop can reach the PLC network.”
Risk: One phishing email can stop a production line.
Service: OT/IT segmentation
“Sales and field staff share one VPN password.”
Risk: No way to know who connected, or to revoke one person.
Service: Remote access VPN / ZTNA with MFA
“The firewall was installed years ago and nobody has looked at it since.”
Risk: Outdated firmware, open ports and rules nobody understands.
Service: Firewall & perimeter management
“We only find out about an attack when systems stop.”
Risk: Attackers stay inside for weeks before acting.
Service: Security monitoring (SIEM / SOC)
“Backups are on a disk next to the server.”
Risk: Ransomware encrypts the backups too.
Service: Backup & ransomware resilience
“Our customer has sent a security audit questionnaire.”
Risk: Lost orders, or rushed fixes that don’t hold.
Service: Security assessment & VAPT
From a flat network to controlled zones with secure tunnels.
Flat network
Illustrative
Office
Office PCs
Email, browsing, ERP
Guest
Guest Wi-Fi
Visitors, contractors
Plant
PLC & SCADA
Production control
Vendor
OEM remote tool
Always-on access
Servers
ERP & files
On-site server
Internet
Direct exposure
Open ports
Everything can reach everything. One compromised device puts the whole site at risk.
What we usually find
- Office, guest Wi-Fi and machines on one network
- Remote-desktop tools installed by OEMs
- Plants linked over the public internet
- Shared VPN accounts, no MFA
- Firewall firmware years out of date
- No central logs or alerts
Controlled zones
Illustrative
IT zone
Office PCs
Internet through the firewall
Guest
Guest Wi-Fi
Internet only, isolated
OT zone
PLC & SCADA
No direct internet
DMZ
Edge gateway
The only path between IT and OT
Servers
ERP & files
Reached through firewall rules
Vendor
OEM access
Approved and recorded
Each zone reaches only what it needs. Every path between zones is controlled and logged.
What changes
- Separate zones for office, guest, servers and plant
- OEMs connect through approved, recorded sessions
- Plants linked by encrypted site-to-site tunnels
- Named accounts with MFA for every remote user
- Firewalls patched and rules reviewed
- Central logs with alerts to a named team
Ten services. Take one, or let us run them all.
Site-to-site VPN & SD-WAN
Encrypted, monitored links between plants, warehouses, depots, head office and cloud — with automatic failover between internet lines.
What we do
- Network survey of every site
- IPsec tunnel or SD-WAN design
- Dual-ISP and 4G/5G failover
- Traffic priority for ERP and production apps
- Cloud connectivity (AWS / Azure / GCP)
You receive
- Network topology diagram
- IP and routing plan
- Failover test report
- Link health dashboard
Outcome: Every site connected securely; ERP and plant systems stay up when one line drops.
Typical technology: IPsec, SD-WAN appliances, cloud VPN gateways
Remote access VPN & Zero Trust (ZTNA)
Staff, field teams and managers reach only the applications they need, from anywhere, with MFA on every sign-in.
What we do
- Inventory of remote users and apps
- Per-application access policies
- MFA and device checks
- Retire shared VPN accounts
- Access logs for every user
You receive
- Access policy matrix
- User onboarding guide
- Access review report
- Remote access runbook
Outcome: Each person reaches only their apps, and one user can be removed without affecting anyone else.
Typical technology: ZTNA platforms, client VPN, identity provider integration
Secure vendor & OEM remote access
Machine builders and integrators support your equipment through approved, time-limited and recorded sessions instead of always-on remote-desktop tools.
What we do
- Find existing remote tools on the plant network
- Approval workflow for each session
- Access limited to specific machines
- Session recording
- Remove always-on tools
You receive
- Vendor access register
- Approval workflow
- Session logs
- Vendor onboarding pack
Outcome: OEMs keep supporting your machines, and you decide when and to what.
Typical technology: Privileged access gateways, jump hosts, industrial remote access appliances
OT / IT network segmentation
Separate zones for office, guest, servers and plant, with a DMZ between IT and OT so office threats stay away from machines.
What we do
- Asset discovery (passive on OT)
- Zone and conduit design
- VLAN and firewall rules
- DMZ for historians and gateways
- Phased cut-over in maintenance windows
You receive
- Zone diagram
- Asset inventory
- Firewall rule set
- Cut-over and rollback plan
Outcome: A compromised office laptop can no longer reach PLCs or SCADA.
Typical technology: Managed switches, VLANs, industrial firewalls; IEC 62443 zone concepts
Firewall & perimeter management
Firewalls kept patched, rules kept clean and every change reviewed and recorded.
What we do
- Rule base review and clean-up
- Firmware and patch upgrades
- Change requests with approval
- Configuration backups
- Geo and threat filtering
You receive
- Rule review report
- Change log
- Configuration backup schedule
- Firmware status report
Outcome: Rules your team can understand, current firmware and no forgotten open ports.
Typical technology: Next-generation firewalls, UTM appliances, cloud firewalls
Endpoint & mobile device security
Office PCs, shop-floor terminals and field phones protected and managed from one place.
What we do
- Endpoint protection rollout
- Device management for laptops and phones
- Disk encryption
- Patch policies
- Remote lock and wipe
You receive
- Device inventory
- Policy set
- Compliance report
- Lost device procedure
Outcome: Every device is known, patched and can be locked if it goes missing.
Typical technology: EDR, MDM / UEM, disk encryption
Identity, SSO & MFA
One identity per person across email, ERP, VPN and plant apps, with MFA and quick removal when someone leaves.
What we do
- Directory clean-up
- Single sign-on for key apps
- MFA rollout
- Joiner, mover and leaver process
- Admin account controls
You receive
- Identity architecture
- MFA rollout plan
- Access review report
- Leaver checklist
Outcome: Shared passwords retired, and leavers removed from every system at once.
Typical technology: Microsoft Entra ID, Google Workspace, SAML / OpenID Connect
Security monitoring — SIEM & SOC
Logs from firewalls, VPNs, servers and endpoints collected in one place and watched for signs of attack.
What we do
- Log source onboarding
- Alert rules tuned to your environment
- Triage and investigation
- Escalation to your team
- Monthly review
You receive
- Log source list
- Alert runbooks
- Incident reports
- Monthly security report
Outcome: Suspicious activity is noticed and acted on early, not after systems stop.
Typical technology: SIEM platforms, SOC service, EDR telemetry
Backup & ransomware resilience
Backups kept out of reach of the network they protect, encrypted and tested by actually restoring them.
What we do
- Backup coverage review
- Immutable or offline copies
- Encryption of backup data
- Scheduled restore tests
- Recovery runbooks
You receive
- Backup coverage map
- Restore test report
- Recovery runbook
- Retention schedule
Outcome: Backups that ransomware cannot reach, and a tested way back.
Typical technology: Immutable storage, offsite and cloud backup, snapshot tools
Security assessment & VAPT
An independent look at your network, followed by a clear, ranked list of fixes you can share with customers and auditors.
What we do
- External and internal scans
- Firewall and VPN review
- OT review (passive)
- Penetration testing on an agreed scope
- Retest after fixes
You receive
- Risk report ranked by impact
- Remediation plan
- Retest summary
- Questionnaire support
Outcome: Known risks with owners and dates, plus evidence for customer audits.
Typical technology: Vulnerability scanners, manual testing, configuration review
VPN, SD-WAN or Zero Trust? It depends on who connects to what.
| Option | Connects | Best for | Watch out for | Our usual recommendation |
|---|---|---|---|---|
| Site-to-site IPsec VPN | Site ↔ site | Few sites with stable internet | Manual management as sites grow | Good start for 2–5 sites |
| SD-WAN | Many sites ↔ HO ↔ cloud | Multi-plant groups with several ISPs | Licence cost; needs central design | Best for 5+ sites or critical links |
| Remote access VPN | User ↔ network | Staff needing broad network access | Users reach more than they need | Use with MFA and tight policies |
| Zero Trust (ZTNA) | User ↔ specific app | Field, remote and contract staff | Each app must be published | Preferred for most remote users |
| Privileged / OEM access gateway | Vendor ↔ specific machine | Machine builders and integrators | Needs approval workflow discipline | Required for any OT remote access |
Network changes in a running plant, without stopping a line.
01 · 1–2 weeks
Assess
Site surveys, asset discovery, firewall and VPN review, risk report.
02 · 1–2 weeks
Design
Target architecture, zones, IP plan, bill of materials.
03 · As needed
Procure
Reuse existing equipment first; specify only real gaps.
04 · 1–3 weeks
Build & test
Configure off-line, test in a lab or non-production segment.
05 · Per site
Cut over
Changes in your maintenance windows, with rollback ready.
06 · Ongoing
Run
Monitoring, patching, reviews and monthly reports.
Production calendar first
Changes planned around shifts, shutdowns and dispatch peaks.
Passive before active
On OT networks we observe before we scan or change.
Rollback for every change
Configuration backups and a tested back-out plan.
Plant engineering signs off
Your controls team approves any OT change.
Site by site
Pilot one site, then roll out with a template.
Document everything
Diagrams, rules and passwords handed over in a vault.
After go-live, we keep watch.
Visibility
Know what is happening across your sites.
- Link and tunnel monitoring
- Firewall and VPN log collection
- Monthly security report
- Quarterly rule review
Critical alert response: [Business hours]
Manage
Most chosen
Managed network security
We run your firewalls, VPNs and remote access.
- Everything in Visibility
- Firewall and VPN changes on request
- Patching and firmware upgrades
- User and vendor access administration
- Backup and restore checks
Critical alert response: [1 hour]
24×7 detection & response
A security operations team watching around the clock.
- Everything in Managed
- 24×7 SOC monitoring
- Endpoint detection and response
- Incident containment support
- Threat-hunting reviews
- Annual VAPT
Critical alert response: [15 minutes]
[Response times and inclusions are placeholders; confirm per contract.]
A monthly security report in plain language.
Monthly security report
Sample layout
[N]
Threats blocked
[N]
Alerts investigated
[99.9%]
VPN / link uptime
[N]
Patches applied
[N]
Vendor sessions approved
[N]
Open risks & owners
We start with what you already own.
Most plants already have firewalls, switches and licences that are under-used. We audit and reuse them first, and recommend new equipment only where there is a clear gap.
- Fortinet
- Palo Alto Networks
- Cisco
- Sophos
- Check Point
- WireGuard / IPsec
- Microsoft Entra ID
- Google Workspace
- AWS / Azure VPN
- Industrial firewalls
[Confirm vendor partnerships and certifications before publishing.]
Questions IT heads ask
Will setting up segmentation stop production?
No. We observe OT traffic passively first, build and test changes off-line, and cut over in your planned maintenance windows with a rollback plan ready.
Do we have to buy new firewalls?
Not necessarily. We audit and reuse the equipment you already own and recommend new hardware only where there is a clear gap, such as unsupported firmware or missing capacity.
Can our OEM still support machines remotely?
Yes. OEMs connect through an approved, time-limited and recorded session to the specific machine they support, instead of an always-on remote-desktop tool.
VPN or Zero Trust — which should we choose?
Most groups use both: site-to-site VPN or SD-WAN between locations, and Zero Trust access for remote users so each person reaches only the apps they need. The comparison table above is our usual starting point.
Do you work with our existing IT partner?
Yes. We can take on specific services, such as OT segmentation or monitoring, and work alongside your current partner with clear ownership for each area.
Can you help us pass a customer’s security audit?
Yes. We assess your network, fix the gaps that matter and help prepare the evidence and questionnaire answers your customer asks for.
Does this include our Trikaan platforms?
This service covers your plants, offices, devices and the connections between them, including links to Trikaan platforms such as Anvaya and Machine Digital Twin. How we secure the platforms themselves is covered on our Data security page.
How is it priced?
Projects such as assessments and segmentation are quoted per scope. Managed services are priced by sites, devices and users. You get a written estimate after the assessment.
How we secure our own platforms is covered on the Data security page.
