What does a typical BCS network look like? Most installations today have a dedicated BCS network with centralized control via an operator’s terminal in the facility manager’s office. There is no Internet (or LAN) connection, and thus no IT threat. However, the trend today is toward greater connectivity to enable new services, convenience, and savings on infrastructure costs. Newer buildings have network connections to the Inter- net. But even so, most BCS networks still have few resources that are of value to the typical “hacker”. .