In modern buildings, the HVAC system is rarely an isolated entity. Building automation systems (BAS) integrate HVAC components with an array of sensors, controllers, and a central management platform — all connected through networks. This interconnectivity provides significant benefits in terms of optimization and control but also introduces crucial cybersecurity vulnerabilities demanding careful consideration.
HVAC Systems as Targets
While it might not be the primary objective of attackers, HVAC systems within a BAS network present attractive targets for several reasons:
Disruption of Operations: By manipulating HVAC settings, attackers can cause discomfort, potentially force a facility to shut down, or inflict damage to temperature-sensitive equipment.
Entry Point to the Network: Compromised HVAC components can serve as a beachhead to access other, more sensitive parts of a building's network.
Resource Drain (Botnets): Insufficiently secured HVAC devices can be hijacked and assimilated into botnets used for carrying out larger-scale attacks.
Common Vulnerabilities in...