The British government has highlighted growing concerns over cybersecurity threats targeting the nation’s food supply chain, underscoring the sector’s increasing vulnerability as digital systems become more interconnected. In its 2024 Food Security Report, the government noted that cyberattacks could disrupt any stage of the food system, with ransomware identified by the National Cyber Security Centre as the most significant disruptive threat.

Unlike financial institutions, where transactions can be quickly halted with a phone call, food products cannot simply pause production or spoilage while IT issues are resolved. Researchers Richard Jones and Dmitry Feoktistov, who reviewed 43 studies on cybersecurity in the food supply chain, found numerous potential vulnerabilities but also concluded that the overall systemic risks are poorly addressed in existing research. They pointed out that even determining the extent of technology use across the sector is challenging.

Despite growing awareness, official assessments indicate that the food industry’s preparedness for cyber disruptions remains limited. In September, the National Audit Office evaluated the resilience of Britain’s food supply to serious interruptions, including cyberattacks, and found that the sector’s ability to cope with catastrophic events has not been adequately tested. The watchdog also criticised the Department for Environment, Food and Rural Affairs (Defra) for insufficient efforts to bolster resilience.

While isolated cyber incidents have caused disruptions—such as the partial profit loss reported by food processor JBS—major supply chain breakdowns have yet to occur nationally. Large retailers like Morrisons and Marks & Spencer have continued operations during similar challenges, benefiting from diverse food producers and established contingency plans. These factors reduce the likelihood of a single cyber event crippling Britain’s overall food supply in the near term.

However, MI5 Director-General Sir Ken McCallum emphasized the broader risks posed by increasing reliance on interconnected systems during a recent security briefing. He warned that vital infrastructure—including financial systems, energy grids, supply chains, and manufacturing networks—was originally designed for efficiency rather than resilience against deliberate disruption or coercion.

The sector’s vulnerabilities were illustrated recently by incidents involving compromised refrigeration systems in France, causing food spoilage and logistical delays. Such disruptions, while not dramatic in scale, can have serious consequences by wasting perishable goods and impeding deliveries.

Historically, discussions of food security have focused on agricultural challenges, climate impacts, geopolitical conflicts, and policy debates. However, digital technologies and cybersecurity are now emerging as key factors influencing the stability of Britain’s food supplies. As the sector continues to digitize and automate, the risks associated with cyber vulnerabilities demand increased attention to safeguard national food security.