Major agricultural operator Mackay Sugar suffered a severe operational disruption after a targeted cyber attack hit its corporate and industrial network environments. The incident forced a proactive shutdown of automated manufacturing and IT systems, halting operations across multiple north Queensland sugar mills during the critical peak crushing season. While physical harvesting continued in some regions, the technical outage froze logistics scheduling, weighing, and refining processes. Cyber incident response teams were deployed to isolate the environment and initiate recovery from clean offline backups.