Cyber Security
IoT security: protect everything on your network — not just the computers
Your servers and laptops aren’t the only things connected to the internet. Your heating, lighting, door access, alarms, cameras, locks and fridges are too — and every one of them can be attacked. We find, assess and monitor the connected devices across your organisation, and tell you plainly where you’re exposed.
A small fee for a lot of reassurance
Why Foresight
- Cyber Essentials Plus certified
- Supporting 130+ organisations since 2006
- We scan beyond just laptops & servers
- Plain-English, no jargon
Quick answer
IoT security protects the “Internet of Things” — the internet-connected devices in your building that aren’t traditional computers, such as heating, lighting, door-access systems, alarms, CCTV, smart locks and refrigeration. Because these devices are online, they can be hacked and controlled remotely — even when they hold no data at all — causing physical disruption, safety risks and real financial loss. IoT security means knowing every connected device you have, checking it for vulnerabilities, keeping it patched and segmented, and monitoring it for attack.
A real-world wake-up call
When hackers cooked the fridges
In October 2026, attackers broke into the refrigeration systems of hundreds of French supermarkets and heated the fridges to 50°C for six hours — spoiling millions of euros of food and even starting fires. No data was stolen; the target was a fridge. It’s the clearest warning yet that anything connected to the internet can be attacked, whether or not it holds data. We wrote about what it means for every business in when hackers cooked the fridges.
What counts as IoT
It’s already live in your building
The Internet of Things is running in your organisation right now — usually without anyone treating it as “IT.” Any of these, connected to your network, is in scope:
| Connected device | What an attacker could do |
|---|---|
| Heating & air-con (HVAC) | Switch it off in winter (burst pipes) or drive it to extremes |
| Door-access systems | Unlock doors, or lock people out — a safeguarding and security risk |
| Alarms & CCTV | Disable alarms or blind cameras during an incident |
| Smart locks | Open or seal doors remotely |
| Lighting | Plunge a site into darkness or disruption |
| Refrigeration | Spoil stock and cause losses — exactly what happened in France |
| Building management systems | Take control of multiple building services at once |
| Shadow IoT (smart plugs, webcams, voice assistants) | Create an unmonitored way onto your network |
What we do
Our IoT security process
| Step | What it means |
|---|---|
| 1. Discover & inventory | We find every connected device on your network — most organisations don’t have a list |
| 2. Assess & scan | We extend our endpoint vulnerability scanning to your connected devices, checking for known flaws, default passwords and missing updates |
| 3. Segment & harden | We put IoT on its own network segment so a breached device can’t reach your data or critical systems — then change defaults and patch |
| 4. Monitor & advise | We keep watch for suspicious behaviour through our 24/7 monitoring and tell you plainly what to fix first |
In short: IoT security is the same discipline as our vulnerability scanning for laptops and servers — extended to every other connected thing in your building. One view of your whole attack surface, not just the obvious bits.
Why it matters
The stakes are physical, not just data
This isn’t about spreadsheets. In a school, a hijacked door-access system is a safeguarding emergency, and heating switched off over winter closes classrooms and bursts pipes. In a hospital or care setting, connected building systems and equipment make the stakes about safety, not money. In any office or shop, it’s locked-out staff, tripped alarms, spoiled stock and downtime. And the uncomfortable truth from France: the weakness had been flagged months earlier and a fix existed — it simply wasn’t acted on. That’s what monitoring and patching prevent.
FAQs
Common questions
What is IoT security?
Why do IoT devices need protecting if they hold no data?
How do you secure IoT devices?
What is “shadow IoT”?
Is IoT security expensive?
Know what’s connected. Know you’re safe.
Find out what’s on your network and where you’re exposed — start with a free external risk scan, or talk to us about IoT security.