2026 Mackay Sugar — cyberattack shuts Queensland sugar mills (Farleigh, Racecourse)
Data compromised
Operational disruption; customer PII scope not disclosed at initial notice
Technical writeup
On June 10, 2026 Mackay Sugar told growers and ABC that a cyber security incident forced it to halt crushing at Farleigh and Racecourse mills in north Queensland after operating systems were compromised, with specialist investigators and authorities engaged. The company reported the incident to regulators, began staged manual crushing at Farleigh to process cane harvested before the outage, and said on June 12 it hoped to resume staged operations the following week. Mackay Sugar is Australia’s second-largest raw sugar producer; no attested count of exposed customer or employee records was published at initial disclosure—BreachHistory tracks the confirmed operational compromise.
Root cause
Cybersecurity incident compromising mill operating systems (investigation ongoing)