Does an IP-connected fire detection system really present cybersecurity risks?
Yes. As soon as a fire detection panel communicates via the building's IT network (remote management, centralized supervision, alarm reporting to a central station, integration with building technical management), it becomes a potential access point just like an IP camera or air conditioning controller. The risk is not theoretical: a poorly isolated safety device can serve as an entry point to the rest of the network, or conversely be disrupted by an incident occurring elsewhere on that network. The NBN S 21-100-1 standard governs the design and installation of fire detection, but it does not address network cybersecurity: this dimension requires a joint approach between the installer, the building manager, and the IT department.
What are the concrete vulnerabilities of a fire alarm panel connected to the building network?
The most common vulnerabilities relate less to the detection equipment itself than to how it is integrated into the existing IT network. A panel connected without isolation to the office network inherits all the vulnerabilities of that network.
| Vulnerability | Possible Consequence | Typical Origin |
|---|---|---|
| Default password not changed on remote management interface | Unauthorized access to panel configuration | Commissioning without hardening |
| Absence of network segmentation | Propagation of an IT incident to the fire alarm panel | Cabling on the same VLAN as office network |
| Firmware not updated | Exploitation of known and published vulnerabilities | Absence of maintenance contract covering software aspect |
| Poorly secured remote access (remote maintenance) | Control takeover or alarm reporting interruption | Remote maintenance portal exposed without restriction |
These points do not question the reliability of detection itself, but that of its communication layer.
Why is network segmentation recommended for a fire detection panel?
Network segmentation consists of isolating the fire alarm panel and its peripheral equipment (repeaters, remote management gateways) in a separate logical network (dedicated VLAN) from the office network and general technical management network. The objective is twofold: prevent an incident occurring on the standard IT network (ransomware, intrusion) from affecting the fire safety function, and prevent access to the panel from serving as a pivot to the rest of the information system.
In practice, this means defining with the building's IT department which flows are strictly necessary (alarm reporting to the security station, remote management for maintenance) and blocking everything else through firewall rules. This requirement must be formalized from the installation specifications, not added afterwards: a panel already cabled on a flat network is more expensive to isolate than a panel designed with segmentation from conception.
How to manage updates of a connected fire alarm panel without compromising its reliability?
Updating a connected fire alarm panel must follow a controlled procedure, as a poorly managed update can itself cause a detection malfunction. The principle always remains the same: never apply an update without prior validation from the certified installer who provides maintenance under NBN S 21-100-2.
Some principles to respect in professional contexts:
- 1.Document each installed firmware version and update date in the building's safety register.
- 2.Test the update on non-critical equipment or outside occupancy hours, when possible.
- 3.Verify after update that alarm reporting to the emergency zone (hulpverleningszone) or central station still functions correctly.
- 4.Keep a documented functional previous version, to be able to roll back in case of malfunction.
This rigor aligns with that already required for standard periodic fire detection maintenance: a software update is, from a safety perspective, a full maintenance act.
What best practices should be adopted in Belgian professional contexts?
In Belgium, cybersecurity management of a connected fire alarm panel relies on a clear distribution of roles between the operator, the BOSEC-certified installer, and the building's IT department. No Belgian regulatory text currently sets specific cybersecurity rules for fire detection: vigilance therefore relies on engineering best practices, not a quantified obligation.
Practices to prioritize:
- Require the installer to harden access (change default credentials, disable unused services) from commissioning.
- Limit remote maintenance access to identified time slots and addresses, with connection traceability.
- Include the fire alarm panel in the inventory of sensitive equipment maintained by the IT department, like other critical technical building systems.
- Have network design (segmentation, authorized flows) validated jointly by the installer and IT specialist before installation acceptance.
The ANPI can be consulted by installers and operators for additional technical recommendations, outside the strict regulatory scope.
Who is responsible for the cybersecurity of a fire alarm panel in Belgium?
Responsibility for cybersecurity of a connected fire detection panel is shared between the building operator, the installer who provides maintenance under NBN S 21-100-2, and the internal or external IT department managing the building network. None of these three actors can cover the entire risk alone.
The prevention advisor (conseiller en prévention) has a coordination role: ensuring that the fire safety function remains guaranteed regardless of IT network changes, and that potential IT incidents are tested for their impact on detection. This coordination must be formalized in the building's internal procedures, like other fire prevention aspects provided by the Code on Well-being at Work (Codex over het welzijn op het werk) (Book III, Title 3).