Buildings with internet-connected OT (operational technology) devices and networks (BACnet) are susceptible to cyber attacks. This can lead to operational disruption or open a gateway to attack the IT network resulting in data theft or ransomware. This video highlights 6 things that building operators and systems integrators can do to improve cybersecurity for buildings. A key recommendation is for device-level security that utilizes a zero trust framework to authenticate device-to-device communication.