Exposure discovery & network security · UK critical infrastructure
Know what you expose.
Prove your defences hold.
Netivaleo maps the external attack surface of essential-service operators, checks that network segmentation would actually contain a breach, and turns the result into dated evidence your board and your regulator can rely on — authorised, passive by default, and safe to run against OT.
What we do
Two things, done properly.
We own the technical half of the problem end to end — and we are explicit about the parts we don't do.
Exposure discovery & evidence
We find what's reachable from the outside — including the assets a name-based scan never sees — confirm exposure without exploiting it, and record everything as a dated, comparable archive so you can show how your exposure changes over time.
Network security remediation
Backed by a CCIE and two decades in network security, we help close the gaps the discovery finds: segmentation, zero-trust access, network access control and MFA — the controls that limit how far an intruder can travel once they're in.
Why us
The difference is in how carefully we look.
Passive by default, OT-safe
Active exploitation is dangerous on SCADA and OT. We observe rather than probe — confirming a vulnerable version and whether it is actually communicating externally — so critical processes are never put at risk.
Inventory completeness
A scan of your known domains can miss roughly half of a multi-domain estate. We sweep the address ranges you own and surface the hosts nobody remembered — the first control of every recognised framework.
Evidence over time
A scanner tells you what's exposed today. We keep a tamper-evident, dated archive, so the next run shows exactly what changed — letting you demonstrate that your controls are working, not merely present.
We tell you where the gap is. We don't claim to have closed something we have only found — and we never report a system as “confirmed vulnerable” from the outside.
Why operators act
Compliance is the reason. Reducing exposure is the work.
UK essential-service operators carry a legal duty to manage their cyber risk. We help you meet the technical part of it — and evidence it — without overstating what any single supplier can deliver.
- The NIS Regulations 2018. The current duty on operators of essential services and relevant digital service providers.
- Cyber Security and Resilience Bill. Before Parliament (introduced late 2025) — widening scope and strengthening the regime.
- NCSC Cyber Assessment Framework (CAF). The UK’s outcome-based framework for assessing essential-service cyber resilience.
- Cyber Essentials. A recognisable UK baseline for fundamental security controls.
- CIS Controls v8 — Controls 1 & 2 — inventory of enterprise and software assets
- NIST CSF 2.0 — Identify → Asset Management (ID.AM-01/02)
- ISO/IEC 27001:2022 — Annex A 5.9 — inventory of information and associated assets
The law requires the inventory and a systematic, ongoing programme; a recognised framework is how completeness is evidenced. We never claim the law requires any particular framework.
Found us? That's rather the point.
We don't cold-call. If you operate essential services in the UK and want to see what you're exposing — start with a conversation.
Contact Netivaleo