Goldilock FireBreak™ · AI Kill Switch

AI moves at machine speed.
A real kill switch is physical.

FireBreak™ puts a hardware-enforced, Layer 1 disconnect between your AI systems and everything they can reach — controlled out-of-band, with no IP path for software, malware or a rogue model to override.

NATO DIANAPhases 1 & 2NATO Sole Source supplier
ApprovedNCSC UK
Made inUSAUK
Tested byMITREQinetiQCR14ProofLabs

Chapter 01 — The threat

The guardrail lives inside the thing it’s guarding.

Autonomous agents find weaknesses, escalate privileges and move laterally faster than any human decision cycle. Software firewalls, VLANs and AI guardrails run in the very environment they protect — so when that environment is compromised, so are they.

29 min

average speed of attack

241 days

average time to recover

$4.88M

average cost of a breach

Chapter 02 — What’s the plan?

Too hot. Too cold. Just right.

When an AI system goes wrong, most organisations have two plans. Neither one works.

PLAN ATOO HOT

Stay connected and react

Always on, always exposed. Rely on detection, and respond after the damage is done — at human speed, against a machine-speed adversary.

PLAN BTOO COLD

Pull the plug on everything

Break glass, shut it all down. Safe — and the business stops with it. Lost productivity, operational friction, and a slow, risky restart.

FIREBREAK™JUST RIGHT

Disconnect exactly what matters, instantly

Physically isolate the AI cluster, model repository or OT domain under threat — and keep the rest of the organisation running. Contain first, then fix.

Over-connection is the risk. Dis/connection™ is the control.

Chapter 03 — Pull the FireBreak

Try out our interactive demo below.

Each port on this FireBreak™ 12 is a physical connection to one part of your AI estate. Tap a system to open its switch, or pull the whole FireBreak at once — and watch the port lights and what an autonomous agent can still reach.

AGENT ACTIONS

1,284,331

RATE

14,725 /s

REACHABLE SYSTEMS

12 / 12

STATUS

Agent spreading

Goldilock FireBreak 12-port rack unit. Its port lights show which systems are connected and which are isolated.
GREEN · CONNECTED RED · PHYSICALLY ISOLATED

Commands travel out-of-band over a non-IP control channel. There is no network address for the agent to reach, and no software setting it can quietly change back.

Chapter 04 — How it works

No IP. No internet. No override.

FireBreak’s multi-patented design sits inline on the cable. When the control plane says disconnect, a physical relay opens the circuit — and the data plane simply stops existing.

Network

AI AGENTS · INTERNET · IT

FIREBREAK™

Physical relay · connectedCircuit open · isolated

Critical system

MODELS · GPUs · OT · DATA

CONTROL PLANE

Out-of-band · non-IP

Operator · SIEM · SOAR · EDR · API · schedules

Hardware-enforced

A deterministic Layer 1 boundary around compute clusters, model repositories and OT domains, protected by multiple patents. Physics, not policy.

Independent control

The command path never touches the production IP network, so it stays available — and trustworthy — during a total software breach.

Threat-to-action

An open API ties into SIEM, SOAR, EDR and monitoring to trigger physical containment automatically, within milliseconds.

Human authority

People keep the final say over connectivity, isolation and recovery — with an auditable record of every intervention.

Chapter 05 — Three ways to use it

React. Prevent. Schedule.

FireBreak isn’t only a break-glass button. Use it to contain an incident, to keep critical systems offline by default, or to open short, scheduled windows of connectivity — and mix all three across your estate.

MODE 01 · REACTIVE

Contain the moment it’s detected

When your SIEM, SOAR or EDR flags a threat — or an operator sees one — FireBreak physically isolates the affected systems in milliseconds, and keeps the rest of the business running.

MODE 02 · PREVENTATIVE

Keep critical systems disconnected

Model repositories, backups and OT stay physically offline by default and connect only when someone with authority says so. What isn’t connected can’t be reached.

MODE 03 · TIMED ACCESS

Shrink the exposure window

Schedule connections for exactly when they’re needed — a backup run, a model sync, a vendor session — and disconnect automatically when the window closes.

CONNECTED PHYSICALLY ISOLATED A typical 24 hours in each mode

Watch · 25 seconds

AI needs a kill switch. FireBreak provides one.

Chapter 06 — Proof, not promises

Approved by the people who defend nations. Tested by the people who attack for a living.

SELECTED · PHASES 1 & 2

NATO DIANA

Selected for both Phase 1 and Phase 2 of NATO’s DIANA defence innovation accelerator — the first round chose 30 companies from roughly 1,300 applicants — and put through Alliance-led experimentation alongside the NATO Communications and Information Agency, including control over quantum-safe encrypted channels without added latency.

NATO-designated Sole Source supplier — because nothing else does what FireBreak does.

APPROVED

NCSC UK

Approved by the UK’s National Cyber Security Centre and advised for physical network segregation under the Cyber Assessment Framework 4.0.

INDEPENDENTLY TESTED BY

Red-teamed, range-tested and validated in live environments.

MITRE

US not-for-profit R&D for national security

QinetiQ

Defence science & test evaluation

CR14

Cyber range & exercise foundation

ProofLabs

Independent security validation

Live lab · DMZ recon

Threat detected. DMZ isolated at Layer 1.

Real hardware, real monitoring stack. When reconnaissance is detected, FireBreak physically pulls the DMZ off the network — the SIEM sees the isolation, and the attacker sees nothing at all.

“An essential technology to better protect and recover from ransomware attacks.”
Former SVP, Advanced Security Research, Cisco

Chapter 07 — Ready for where it matters

Built for the enterprise. Trusted in sensitive environments.

Multi-patented British technology, built in secure facilities in the UK and the USA. Drop-in, stack-agnostic, and ready for data centres, defence networks, critical national infrastructure and regulated industries — no forklift upgrade required.

Goldilock FireBreak 12-port rack unit with dual antennas

CONNECTIVITY

Copper and fibre

Copper RJ45 in 4- and 12-port models, plus a fibre version in 2- and 4-port models for enterprise speeds. Every port is an independent pair.

RESILIENCE

Built to stay in control

Redundant power and SIM options keep the out-of-band command path alive when the production network isn’t.

INTEGRATION

Fits your SOC

An open API with SIEM, SOAR and EDR integration turns detections into physical containment — automatically or with a human in the loop.

COMPLIANCE

Auditable by design

Aligns with NIS2, DORA, ISO 27001, CAF 4.0, US CISA guidance and UK CNI mandates, with a record of every intervention.

HYPER-SECURE SUPPLY CHAIN

Made in the UK. Made in the USA.

Every FireBreak is built in our own secure facilities in the United Kingdom and the United States. Every component is either manufactured by Goldilock or sourced from NATO or EU countries — so you know exactly where your kill switch comes from.

MANUFACTURED IN

USA

US-built hardware from our secure American facility.

MANUFACTURED IN

UK

Designed, engineered and built in Britain.

Components made by Goldilock or sourced from NATO and EU countries only.

The FireBreak family: rack-mount and desktop units in RJ45 and fibre

THE FIREBREAK™ FAMILY

One per GPU rack. One per OT cell. One in front of every model you can’t afford to lose.

Rack-mount and desktop form factors, in copper or a fibre version for enterprise speeds — deployed at the high-risk access points where a disconnect matters most.

AI & Data Centres◆Defence◆Finance◆Energy◆Telco◆Healthcare◆Rail◆Aviation◆Water◆Oil & Gas◆Legal◆

Your move

How quickly can you disconnect?

Put a real kill switch between your AI and everything it can reach. See it work — then prove it in your own environment.

OPTION 01

Book a live demonstration

Watch FireBreak isolate an AI workload at Layer 1 — and ask our engineers anything about your architecture.

OPTION 02

Run a Proof of Concept

Deploy FireBreak in your own environment, against your own scenarios, with Goldilock professional services alongside.

Prefer to talk first? Contact us or write to sales@goldilock.com.