Experts warn legacy US utility systems could harbor hidden cyber threats after French freezer hack
Cybersecurity specialists say the recent hack of French supermarket freezers shows that outdated American utility and industrial systems may already be compromised. They urge a shift from pure security to resilience against such intrusions.
A recent cyberattack on French supermarket freezers, which raised temperatures above 100 °F and led to massive product loss, has been cited as a warning for U.S. critical infrastructure. John Walsh, senior vice president at IGEL, explains that many American utilities, factories and other essential facilities run on legacy equipment that no longer receives security updates, mirroring the situation faced by Danfoss in France.
He argues that operators should move from a mindset of preventing breaches to one of resilience, assuming attackers are already inside and containing their impact. Walsh also warns that a Trojan-horse-like code could already reside in the U.S. power grid, ready to be activated. Policy commentator Amy Kremer adds that everyday internet-connected appliances, from thermostats to refrigerators, expand the attack surface for hackers. Past incidents, such as a coordinated cyber assault on Minnesota water systems, illustrate how targeting utilities could disrupt food and water supplies and cause broader social unrest.
Why it matters
Outdated, internet-connected infrastructure could let hackers disrupt essential services across the United States.
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