Update: Let’s Get Cyberphysical: Internet Attack shuts off the Heat in Finland

**Executive summary:** A sustained DDoS attack against publicly reachable building automation devices in Lappeenranta, Finland caused temporary loss of heating and other building services in two properties; investigators linked the outage to malicious traffic hitting exposed Fidelix devices and warned that roughly 1,000 similar systems are Internet-accessible and vulnerable, raising the risk of further physical-impact incidents.