Pentagon treats freezer failures at 6 military base stores as a suspected hack, four officials say

The Pentagon is treating freezer failures that spoiled food at U.S. military base stores in August as a suspected cyberattack, four officials told Reuters on October 29. The report matters again this week because supermarkets in northern Europe reported the same kind of failure on Monday, when freezers reached 50C in Belgium, Sweden and Ireland.

What Reuters reported

• At least six commissaries, the on-base grocery stores for service members, were affected in late August, based on Reuters' review of the bases' Facebook posts and website updates.
• In at least one case, cooling units were set to higher temperatures overnight, leaving wilted or melted food by morning.
• Fort Huachuca in Arizona posted on August 26 that its freezer "went into defrost mode where it heated up all the food."
• A Pentagon spokesperson said a Cyber Command unit was "working in close coordination with interagency and law enforcement partners," and did not elaborate.
• The Army Criminal Investigation Division said its cyber office is involved and is working with French law enforcement on "the refrigeration outages in Europe."

The French link

One official told Reuters that U.S. investigators were in contact with French counterparts about a similar attack earlier this month. According to Reuters, that attack overrode temperature controls at more than 350 French establishments, and some units were heated so far that they caught fire. One supermarket owner estimated the national cost could reach tens of millions of euros. Danish manufacturer Danfoss, whose controllers ran many of the affected units, said many devices were obsolete or running outdated firmware, according to Reuters. Danfoss did not respond to Reuters' requests for comment, and the French Embassy in Washington declined to comment.

Confirmed, claimed, unknown

Confirmed: that the failures happened and that the Pentagon and Army investigators are involved. Claimed, by unnamed officials: that the Pentagon is treating the outages as a suspected hack. Unknown: whether anyone actually gained access to the commissary systems, who may be responsible, how far the investigation has progressed, and whether the August incidents are connected to the French or Monday attacks. Reuters says it could not establish whether Danfoss or any other controller brand was used at the affected bases.

Why it matters

Reuters points to a pattern. It reports that Danfoss said hackers targeted supermarkets in Russia and Israel in 2022 through obsolete controllers, and that in December 2025 federal prosecutors in Los Angeles accused a Ukrainian woman of belonging to a hacker group that knocked out refrigeration at a meatpacking facility in 2024, ruining more than 2,000 pounds of meat. Bill Moore, CEO of Xona Systems, told Reuters controllers built to be serviced in person are increasingly connected to the internet and that "it can definitely disrupt the supply chain for food." The Global Food Safety Initiative has urged "robust cybersecurity" for refrigeration technology.

For food retailers and independent grocers the practical question is the same as in our earlier report: who has remote access to the cooler and freezer controllers, and is there a standalone thermometer with its own alarm. We have not verified any link between these incidents and any listed company's share price.

What to watch

• Whether the Pentagon or Cyber Command confirms an intrusion or names a cause.
• Whether European authorities connect Monday's attack to the French one.
• Whether Danfoss or retailers disclose which controllers and firmware versions were affected.
• Whether any group claims responsibility.

Sources: Reuters, October 29, 2026 (via CP24); Reuters via CNBC, November 2, 2026; earlier Chronicle coverage. This is news reporting, not investment advice.