BACS comprise a large number of components that provide, exchange, and receive information across systems, such as for determining the location of personnel or for room automation. These devices communicate via LAN and WLAN, but also using other wireless technologies such as Bluetooth.

If such network access attempts are not adequately protected, an attacker can use them to carry out DoS attacks. They can also manipulate or sabotage BACS and possibly even access all the rest of the affected organisation's IT. Manipulated BACS can then cause an increase in data volume, even to the point of overloading networks and components. Inadequate access protection can also result in data leaks or the installation of malware.