OT/ICS Security
- OT asset discovery and communication baseline mapping
- Purdue model segmentation and zone architecture
- IEC 62443 and NIST SP 800-82 aligned programmes
Network, cloud and OT security
for regulated enterprises
Firewall and segmentation, cloud and OT security across Europe, scoped and delivered by senior architects, not handed to juniors.
what we do
Security the business can live with
We secure the networks regulated enterprises run on: firewalls and segmentation, AWS cloud and remote access, and the OT networks in their plants. Every control is checked against real traffic before it goes live, so the business keeps running.
Every engagement is led by a hands-on architect. The person who scopes your work stays on it through delivery and handover.
OT/ICS Security
Architecture
OT asset and communication baselining, Purdue-model zoning, and conduit design, then restrictive firewall rules built from verified traffic, coordinated with your equipment vendors.
Aligned with IEC 62443, NIST SP 800-82r3 and NIS2, and built for GxP-validated environments where downtime is not an option.
Explore OT/ICS security
Network Segmentation
& Firewall Policy
Firewall rule cleanup and policy hardening, Zero Trust segmentation, and 802.1X/NAC across IT and OT, from high- and low-level design through to day-two operations.
We work across Cisco, Palo Alto, Check Point, F5, Meraki, and hybrid environments, in regulated manufacturing, logistics, and institutional networks where performance and security must both hold.
Explore network security servicesCloud & Hybrid
Security Architecture
AWS security architecture for organisations where plant networks, corporate IT and cloud workloads meet.
Palo Alto NGFW on AWS, Prisma Access and Zscaler, with infrastructure as code so every site is deployed the same way.
Explore cloud & hybrid security
Ways to start
Three fixed-scope engagements with a clear deliverable. Every environment is different, so we confirm scope and price after a 30-minute call.
OT Segmentation Assessment
Typically 2–4 weeks, one site
We map how your OT assets actually communicate, compare it with your zones and conduits, and show where flat networks or permissive rules put production at risk.
You receive
- Asset communication baseline
- Zone and conduit model (IEC 62443-3-2)
- Prioritised remediation roadmap
Firewall Rule Cleanup & Hardening
Typically 3–6 weeks, scaled to rule base
We remove unused, shadowed and over-permissive rules and objects, validate every change against live traffic, and leave you with a policy your team can maintain.
You receive
- Rule and object analysis report
- Staged, rollback-safe change plan
- Ongoing governance process
NIS2 OT Readiness Review
Typically 2–3 weeks
We assess your OT and plant networks against the NIS2 risk-management measures and IEC 62443, and tell you plainly what an auditor would flag.
You receive
- Gap analysis against NIS2 Article 21
- Risk-ranked findings
- Board-ready summary and action plan
Security architecture built
on real enterprise
experience.
What working with
BlueCyber looks like
We operate as a senior extension of your security function, bringing architect-level thinking and consistent accountability from first call to final delivery.
Also available: custom programmes for non-standard environments and training and knowledge transfer for your team.
Talk to us about
your next challenge
If your environment is complex, regulated, or simply doesn’t fit the standard playbook, that’s where we work best. Let’s have an honest conversation about what you need.
Book a consultation
our story
Led by Adrian Boscu MSc.,
Founder & Managing Director
Adrian has spent over 15 years securing pharmaceutical, semiconductor and luxury-goods manufacturing, EU institutional networks and large AWS estates. He founded BlueCyber and leads every engagement personally.
When a project needs more hands, we bring in specialists from a network of senior engineers and architects we have delivered with before. The person who scopes your work stays on it, and no juniors are placed in front of clients.
Selected work
Read the case studiesClient names are withheld where confidentiality applies. Work delivered by our founder and network members, directly and through partner consultancies.
Let’s talk about your environment
Tell us about your environment, a senior BlueCyber professional will respond within one business day with an honest assessment and a complimentary estimate.
Book a consultation