CISA, FBI Urge Action to Protect Industrial Refrigeration Networks
The advisory, issued by the Cybersecurity and Infrastructure Security Agency (CISA), the FBI and other federal agencies, said that US authorities The warning follows a number of recent incidents in which hackers accessed internet-connected refrigeration systems and have attempted to tamper with temperatures.
The advisory, issued by the Cybersecurity and Infrastructure Security Agency (CISA), the FBI and other federal agencies, said that US authorities The warning follows a number of recent incidents in which hackers accessed internet-connected refrigeration systems and have attempted to tamper with temperatures.
Such attacks can have had huge real-world impacts, including ruining food and medical supplies.
On October 11, 2026, it was reported that several supermarket chains in France and other countries in Europe were forced to destroy food stock after hackers compromised systems administered by refrigeration systems provider Danfoss.
The attackers reportedly programmed systems to reach temperatures as high as 50 °C (122°F); a similar incident occurred on November 1, with supermarkets in at least nine European countries reportedly impacted.
The US advisory , published on November 5, warned operators and owners of refrigeration systems in the US to be vigilant for similar attacks.
This is particularly in sectors such as healthcare, chemical, food and agriculture, and transportation, which widely use these systems for automated and remote monitoring of temperatures, continuous temperature logging, defrost cycle management and energy optimization.
They noted that hackers can use techniques like authentication bypass, arbitrary code injection and weak configurations to gain remote access to these internet-exposed systems.
The authoring agencies set out a number of immediate actions security teams should take to mitigate risks to industrial refrigeration and cold chain monitoring systems, based on the recent threats observed.
We urge you to review the joint fact sheet and take action now to close known security gaps. Data published by Censys on November 5 revealed there has been a 53% reduction in internet-exposed refrigeration controllers across the Danfoss StoreView and Copeland/Dixell XWEB products that were compromised during the supermarket incidents on October 11 and November 2, respectively.
These include: CISA’s acting executive assistant director for cybersecurity Chris Butera, commented: Every organization that depends on refrigeration and monitoring systems should assume it could be a target.
What happened
The advisory, issued by the Cybersecurity and Infrastructure Security Agency (CISA), the FBI and other federal agencies, said that US authorities The warning follows a number of recent incidents in which hackers accessed internet-connected refrigeration systems and have attempted to tamper with temperatures.
Such attacks can have had huge real-world impacts, including ruining food and medical supplies.
On October 11, 2026, it was reported that several supermarket chains in France and other countries in Europe were forced to destroy food stock after hackers compromised systems administered by refrigeration systems provider Danfoss.
What changed
The attackers reportedly programmed systems to reach temperatures as high as 50 °C (122°F); a similar incident occurred on November 1, with supermarkets in at least nine European countries reportedly impacted.
Who is affected
The US advisory , published on November 5, warned operators and owners of refrigeration systems in the US to be vigilant for similar attacks.
This is particularly in sectors such as healthcare, chemical, food and agriculture, and transportation, which widely use these systems for automated and remote monitoring of temperatures, continuous temperature logging, defrost cycle management and energy optimization.
Why it matters
They noted that hackers can use techniques like authentication bypass, arbitrary code injection and weak configurations to gain remote access to these internet-exposed systems.
The authoring agencies set out a number of immediate actions security teams should take to mitigate risks to industrial refrigeration and cold chain monitoring systems, based on the recent threats observed.
Response
We urge you to review the joint fact sheet and take action now to close known security gaps. Data published by Censys on November 5 revealed there has been a 53% reduction in internet-exposed refrigeration controllers across the Danfoss StoreView and Copeland/Dixell XWEB products that were compromised during the supermarket incidents on October 11 and November 2, respectively.
What security teams should do
These include: CISA’s acting executive assistant director for cybersecurity Chris Butera, commented: Every organization that depends on refrigeration and monitoring systems should assume it could be a target.
Attribution
Infosecurity Magazine: The advisory, issued by the Cybersecurity and Infrastructure Security Agency (CISA), the FBI and other federal agencies, said that US authorities “are aware of malicious cyber activity targeting industrial refrigeration and cold chain monitoring systems globally.” The warning follows a number of recent incidents in which hackers accessed internet-connected refrigeration systems and have attempted to tamper with temperatures.