Following cyberattacks on supermarket cooling systems across several European countries, including Germany, IT security expert Christoph Fischer argues that manufacturers of connected devices bear primary responsibility for the vulnerabilities exploited. Fischer criticized the practice of shipping control units with unchanged factory settings and standard passwords, describing this as an unforgivable failure. He noted that while similar attacks in France in October targeted outdated Danfoss controllers, it remains unconfirmed if the current incidents share the same cause. The expert emphasized that secure encryption methods, such as certificates and asymmetric encryption, are technically feasible and should be implemented by manufacturers during initial setup. Fischer warned that the issue extends beyond retail to various sectors like photovoltaics and heat pumps, urging consumers to avoid unnecessary internet connectivity for household devices. Additionally, he suggested that consumer protection organizations should include mandatory IT security criteria in their product evaluations, noting that stricter manufacturer obligations under the Cyber Resilience Act will take effect between 2026 and 2027.
Bias read (Center): The article relies exclusively on technical arguments and regulatory timelines provided by a single security expert, presenting a balanced view of industry standards versus future legal requirements without partisan framing.



