Mackay Sugar has suspended operations at two of its Queensland mills following a cyber attack that disrupted key operational systems, forcing growers to stop harvesting and raising concerns about potential delays during the early stages of the region’s sugar crushing season.
The incident has affected the company’s Farleigh and Racecourse mills near Mackay, both of which had only recently begun crushing cane within the past week. Alongside milling operations, cane haulage services linked to the two facilities were also impacted, creating an immediate challenge for growers, harvesting contractors and transport operators who depend on tightly coordinated schedules throughout the season.
In a statement issued to growers and contractors, Mackay Sugar confirmed it was responding to a cyber security incident affecting operations. While the company said recovery activities were underway, it has not provided a timeline for when normal operations will resume.
Harvesting Halted as Emergency Measures Activated
Canegrowers Mackay chairman Joseph Borg said many growers received cease-harvesting notices during the early hours of Wednesday morning. The decision followed disruption across multiple parts of Mackay Sugar’s operations.
Despite the shutdown, contingency measures were implemented to safely manage cane trains already operating across the network. Borg said fallback procedures were being used to return trains to factories while technical teams assessed the situation and worked to restore affected systems.
The timing is significant. The crushing season is one of the most important periods for Queensland’s sugar industry, requiring close coordination between farms, harvesting crews, transport networks and processing facilities. Even short interruptions can create logistical pressure across the supply chain.
Mackay Sugar stated that its priority remains employee safety and maintaining business continuity while recovery efforts continue. The company has not disclosed the nature of the cyber attack, whether customer or operational data was compromised, or if ransomware was involved.
Major Producer Faces Operational Disruption
Mackay Sugar is Australia’s second-largest raw sugar producer and plays a critical role in the country’s agricultural sector. Nearly 1,300 predominantly family-owned farms supply cane to the company’s three mills, which collectively process around 700,000 tonnes of raw sugar each year.
The company’s third mill is scheduled to begin crushing next week and has not been affected by the incident. Growers supplying that facility have not received instructions to stop harvesting.
While the immediate focus remains on restoring operations, the incident highlights the growing threat cyber attacks pose to industries that rely on interconnected digital systems. Manufacturing, transportation, agriculture and critical infrastructure operators have increasingly become targets because operational disruptions can have significant economic consequences.
Recent cyber incidents have demonstrated how attacks can quickly move beyond IT systems and affect real-world operations. Similar concerns emerged following the Carnival data breach that exposed personal information linked to nearly six million customers, reinforcing the importance of cyber resilience across large organizations.
Read More
According to guidance from the Australian Cyber Security Centre, organizations operating critical infrastructure should regularly review cyber security controls, incident response plans and operational safeguards to reduce the impact of potential attacks.
For growers across the Mackay region, attention is now focused on when crushing operations can safely resume. Until Mackay Sugar provides a restart timeline, uncertainty will remain across a supply chain that supports thousands of jobs and contributes significantly to Queensland’s agricultural economy.
Make Swikblog your go-to source on Google for reliable updates, smart insights, and daily trends.
