Your security program knows about the firewall, but does it know about the elevator? By early August, attackers had hit water systems in at least seven U.S. states. The FBI and EPA said the intruders remotely accessed internet-facing programmable logic controllers, the small industrial computers that run pumps and valves. Operators lost monitoring or control, and in some cases water operations degraded. Federal investigators are examining possible links to Iran-backed hackers. Operational technology (OT) security programs were built to protect controllers like those. Chillers, fire panels, badge readers, elevators and cameras sit one layer over. They control physical conditions and access, and a chiller that stops cooling takes down the servers it was keeping alive. Honeywell Technologies…