We’re not here to sell you another “magic box” or drown you in buzzwords. We’re here to help you secure your operational technology without disrupting it. Because let’s face it: Operational Technology Cyber Security has to work in the real world — the world of ageing PLCs, 24/7 uptime, air gaps (sometimes), and engineers whose focus has to remain locked in on business productivity over the latest cyber security advancements.
Why work with th4ts3cur1ty.company?
We deliver hands-on, practical cyber security services tailored specifically for OT environments like:
- Industrial Control Systems (ICS)
- Supervisory Control and Data Acquisition (SCADA)
- Energy, utilities, transport, water, and manufacturing
- Zero down time environments
- Limited access environments
- Legacy systems that just can’t be switched off
- Cyber-Physical Systems (CPS) security
- Embedded systems security
We have experience in the weird and wonderful from cruise ships to hardware tech. We’ve seen it all (well, most of it) . We’ve worked within production factories, maritime security, the communications industry and we take the general approach of “the weirder the better”.
We work with what you have. Whether you’re running a beautifully air-gapped plant or juggling legacy devices that haven’t seen a patch since Freddo’s cost 10p, we’ve seen it, we get it, and we’ve helped secure it.
We've worked within production factories, maritime security, the communications industry and we take the general approach of “the weirder the better”.
Our Operational Technology Cyber Services
OT Security Risk Assessments
We speak your language and walk your site. Our assessments focus on real operational risk, not just red flags in a PDF. We prioritise what’s critical and deliver remediation plans that are actually achievable.
Network Architecture & Segmentation
Design or review of your OT network with a focus on robust segmentation, controlled interfaces, and minimal impact on your daily operations. You can’t protect what you can’t map and we’re good at both.
Secure Remote Access Design
Engineers need access, we help you give it to them safely. We design remote access that’s secure, monitored, and serves the purpose of the business.
Incident Response Planning & Simulation
If something smelly hits the fan, you need a plan — not a PowerPoint. We build realistic, OT-aligned IR plans and run walkthroughs that your SLT or engineers will actually understand (and maybe even enjoy).
Compliance Without the Consultant Speak
NIS2, CAF, IEC62443, ISO27019 — we translate standards into steps that work on your plant floor. No nonsense. No fluff.
OT Cyber Maturity Programmes
We help you mature your Operational Technology Cyber Security posture over time. Bit by bit, sensibly budgeted, and with clear business alignment.
ICS Boundary Testing
We interface between Industrial environments and external networks to identify vulnerabilities. It focuses on securing firewalls, remote access points, and IT-OT connections to prevent unauthorised access. The goal is to maintain strong network segregation and protect critical operations from cyber threats.
The goal is to maintain strong network segregation and protect critical operations from cyber threats.
Why Teams Actually Like Working With Us With Their Operational Technology Cyber Security
- We’ve Been on Plant Floors, Not Just Zoom Calls We understand that “just patch it” isn’t always an option.
- We Respect Operations You’re not just another IT department. Your systems are the backbone of an organisation's operations, infrastructure, manufacturing output, and daily life. We get that.
- We Make Security Usable If it doesn’t work with your HMI, PLCs, and production schedule — it doesn’t work. We focus on security that’s practical, maintainable, and realistic.
- No Reselling. No Vendor Pressure. No Snake Oil. We don’t make our money pushing someone else's box. We're 100% focused on your outcomes.
Built for Engineers. Approved by Security Teams.
OT cyber security can’t be lifted from a data centre and dropped onto your production line. It has to be grounded in how your systems really operate. That’s why our approach is:
- Hands-on, not hands-off
- Aligned to OT culture, not just IT checklists
- Technically detailed, but still human-readable
Who We Work With
We support critical national infrastructure, industrial sites, utilities, and manufacturers across the world who are done with generic cyber fluff and just want OT security that works. So PLC (please let’s communicate).
If your plant manager, CISO, and operations engineer can’t all sit through the same security briefing without arguing — we’ll fix that too.
Ready to Talk Operational Technology Cyber Security?
You won’t get a chatbot or a call centre. You’ll speak to an actual team member who’s probably stood where you’re standing (possibly in steel-toe boots).
One Last Thing…
If you’re tired of hearing “Just patch it,” “let’s just pentest it” or “Just segment it,” from people who seem to think PLC means “push, load, crash” — we should talk.
th4ts3cur1ty.company – Serious about security. Fun to work with. Deadly effective in OT.
