
NCSC Warns Companies Against Exposing Cooling Systems Directly to the Internet
The Dutch National Cyber Security Centre (NCSC) has issued urgent guidance following a series of attacks on refrigeration systems across Europe, including the Netherlands. Supermarkets and other businesses are advised not to connect cooling installations directly to the internet and to replace default passwords with strong, unique credentials. The NCSC also stresses the importance of applying security updates promptly and monitoring systems for suspicious activity. Affected organisations in several countries have already suffered significant losses, including spoiled food stock and temporary store closures. Manufacturer Danfoss confirmed that compromised installations used factory-default passwords and lacked network segmentation. The agency continues to monitor the situation and investigate the incidents in coordination with European counterparts.
Security.NLNov 2, 2026Translated from NL