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IoT and OT security

Every router you install is a door into a network. IoT and OT security is about knowing what you have in the field, keeping it patched and locking down how people reach it, so a connectivity project stays an asset rather than a risk. We take it seriously, and we keep it practical.

Get a recommendation Call 0300 124 6181

Why it matters now

Cellular routers and gateways now sit in front of CCTV, building controls, energy sites, payment systems and industrial plant. Many were installed years ago, set up once and never touched again. Default passwords, old firmware and open ports on public IP SIMs are still some of the most common ways in. At the same time, customers, insurers and regulators expect suppliers and installers to show they are managing connected equipment properly, and rules on connected-product security are tightening in both the UK and the EU.

Four habits that cover most of the risk

  • Know your estate: a simple, up-to-date list of every device, where it is, what firmware it runs and who can reach it.
  • Keep firmware current: apply vendor updates and security patches, and replace devices that have reached end of life.
  • Lock down remote access: VPNs and vendor platforms rather than open ports, strong unique passwords and the fewest people with access.
  • Manage it centrally: a remote management platform such as Teltonika RMS shows every device's status and firmware and pushes updates without a site visit.

Why vendor platforms matter

The single biggest improvement for most estates is moving from "set up and forget" to central management. A vendor platform shows which routers are out of date, alerts you when something changes, and lets you update a whole fleet from one screen. It also gives engineers secure remote access without public IP addresses or port forwarding, which removes one of the most common weaknesses on cellular sites.

How we help

We have been connecting equipment over mobile networks since 2007, so we see the full range: brand new rollouts and estates that have not been touched for a decade. We supply routers from manufacturers that publish regular security updates, set up remote management, and can talk you through reviewing an existing installed base. Security does not need to slow a project down; it just needs to be part of it from the start.

Talk to M2M and IoT connectivity specialists about security. Whether you have five routers or five thousand, we can help you work out what you have, what needs attention and how to keep it up to date, without making it complicated.

Talk to us about your estate Call 0300 124 6181

Questions

What is OT security?

Operational technology (OT) is the equipment that runs physical processes: PLCs, controllers, meters, building systems and plant. OT security protects that equipment and the networks it sits on, which increasingly connect to the internet through cellular routers.

Are cellular routers a security risk?

Not if they are managed. The risk comes from routers left on old firmware, with default passwords or with ports open to the internet. Kept up to date and reached through a VPN or vendor platform, they can be more secure than many fixed-line set-ups.

Do I need remote management for security?

For more than a handful of devices, it is the most practical way to see what firmware every router runs and to keep it up to date without visiting each site.

Can you review our existing routers?

Yes. Tell us what you have, or how it is managed today, and we will talk you through what needs attention.

In the glossary: OT (operational technology)

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