Why Cyber Green? Because Most Buildings Are More Vulnerable Than You Think.
Smart buildings are no longer just buildings. They are networks, connected systems of sensors, controllers, gateways and cloud platforms that manage everything from heating and ventilation to access control and energy metering.
And most of them have never been properly secured.
Our audits consistently find over 100 vulnerabilities per building. Firmware that hasn't been updated since installation. Devices running on default credentials. Networks with direct public internet access. Building automation disabled because nobody trusted the security of the systems controlling it.
The question isn't whether your building has vulnerabilities. It's whether you know what they are and what they're costing you.
The Hidden Cost of Unsecured Buildings
Most organisations think of cyber security as a defensive cost, something you spend money on to avoid something bad happening. Cyber Green changes that equation.
In a recent audit of a Fortune 500 London headquarters, we identified 115 critical vulnerabilities across the building's IoT and OT systems. More significantly, we found that security concerns had caused the entire AC and building automation system to be intentionally disabled leaving HVAC running uncontrolled, 24 hours a day, 7 days a week.
The result: up to 50% energy cost savings identified. Resulting in a potential six-figure annual saving. A security investment that paid for itself and then some.
This is not unusual. In our experience, it is the norm.
Three Stakeholders. One Engagement.
A Cyber Green audit is the only engagement that simultaneously delivers value to three critical business functions:
CISO / Head of Cyber Security Complete asset visibility across all IoT and OT devices. A prioritised vulnerability remediation roadmap. Documented compliance. Reduced attack surface and demonstrable cyber hygiene for insurance purposes. "We finally know what's on our network."
Head of Sustainability / ESG Director Quantified energy waste identified and attributed to specific system failures. Carbon reduction opportunities surfaced with measurable targets. ESG reporting data drawn directly from building systems. Evidence of progress toward Net Zero commitments. "We can now evidence our ESG claims."
CFO / Finance Director Energy savings that typically make the security investment cost-neutral or better. Reduced operational costs from restored building automation. Lower insurance risk and potential premium reduction. A single budget line that delivers across three business objectives. "This pays for itself."
The Regulatory Pressure Is Growing
The compliance landscape for building cyber security is tightening fast.
NIS2 is now in force, with fines of up to £17 million or 4% of global annual turnover for non-compliance. Building operators and facility managers are increasingly in scope.
Cyber insurance underwriters are tightening requirements. Policies are being voided where basic security hygiene patched firmware, documented credentials, managed networks cannot be demonstrated.
ESG mandates from investors, regulators and tenants are demanding verifiable, auditable sustainability data. Building systems that generate that data must be secure to be trusted.
The UK Government's Cyber Essentials and NCSC guidance increasingly references operational technology and building systems as priority areas.
Cyber Green provides the asset inventory, risk documentation, and remediation roadmap that turns this regulatory pressure into a managed, evidenced, and auditable process.
What We Find. Every Time
Across every building we audit, the findings are remarkably consistent:
- Devices connected to the network that nobody knew were there
- Firmware that hasn't been updated since the building was commissioned
- Default manufacturer credentials still active on critical systems
- Building automation disabled or operating in manual mode due to unresolved security concerns
- Unmanaged networks with direct public internet access
- Cloud-connected IoT devices with no documentation or governance
These are not edge cases. They are the baseline reality of smart building infrastructure in 2026 and they represent both a significant risk and a significant opportunity.
Independent, Vendor Agnostic, Built for Your Outcomes
Cyber Green has no vendor relationships, no product commissions, and no preferred suppliers. Our only commitment is to giving you an accurate, honest picture of your building's cyber and operational risk and a practical roadmap to address it.
We work across all building management systems, protocols, and manufacturers. Our methodology is designed to scale from a single asset to a global portfolio.
And we measure our success by one thing: the measurable improvements we deliver for your organisation in security, in energy efficiency, and in regulatory compliance.
