How Exposed Is the US to the Freezer Cyberattacks Hitting Europe?
European supermarket freezer cyberattacks have put the resilience of U.S. refrigeration systems in the spotlight.
Recent cyberattacks targeting European supermarket freezers have raised concerns about the potential impact on the United States. Last month, authorities in France reported that hackers hijacked refrigeration units at hundreds of supermarkets, causing food losses and fires. Similar incidents have been reported in other European countries, including Belgium, Sweden, Ireland, Estonia, the Netherlands, and Luxembourg. The Pentagon is also investigating suspected cyberattacks affecting U.S. military bases' freezers.
Sean Tufts, field chief technology officer at cybersecurity firm Claroty, advised U.S. supermarkets to pay attention to the European incidents. He noted that the same type of refrigeration controllers used in European stores are also used in the U.S. food retail industry. Many of these controllers use remote connections for monitoring and repairs, making them vulnerable if not properly secured.
Tufts warned that attackers could cause operational disruption and financial losses by altering temperatures or activating defrost cycles.
To reduce their exposure, supermarkets should identify which refrigeration controllers are connected to the internet and who has access to them. They should also ensure that remote access is secured with strong authentication, default passwords are changed, supported equipment is updated, and critical systems are segmented to limit damage from a breach.
IT and cybersecurity expert Daniel Ward explained that the risk depends on whether supermarkets connect their refrigeration systems to a network and properly secure and isolate access to them. However, he pointed out that these devices were often not designed with security in mind and rarely receive updates to fix vulnerabilities.
While the overall risk of a large-scale coordinated attack is considered relatively low, experts emphasized the importance of vigilance. Chris Butera, acting executive assistant director at the Cybersecurity and Infrastructure Security Agency, said that the agency and its partners are actively monitoring malicious cyber activity targeting refrigeration and cold-chain monitoring systems. Major U.S. retailers were also contacted for comment on the situation.
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