Cybersecurity is the protection of networks, devices, accounts and data from unauthorized access, disruption or misuse. In a security system it covers camera and recorder firmware, network segmentation, remote-access paths, account hygiene and monitoring, because a camera sharing a flat network with business systems is part of the attack surface.
Cameras and controllers are computers with specialized jobs. Once they share a network with business systems they inherit the same threats, and they are often the least maintained devices on that network.
Where physical security meets cyber risk
A recorder holds footage and credentials; a camera holds a firmware image and often a network share; an access controller holds a user list. Each is a device with an account, a patch level and a network path. Treating them as appliances rather than computers is how they end up years behind.
Controls that prevent most incidents
Change default credentials, put security devices on their own network segment, restrict remote access to a managed path, update firmware on a schedule and review accounts. These are unglamorous steps, and they close the routes most often used against camera and access systems.
Related:Commercial securityGlossary: VMS