We sorted 153 hardware makers at Enlit Europe 2026 by what they build. How the CRA treats meters, gateways, grid automation and sensors, why meters and gateways have opposite update problems, and where each group should start.
Attackers set supermarket freezers to 50 °C through refrigeration controllers reachable from the internet. Three weak points most connected devices share, four design rules that close them, and what the CRA now requires.
Most connected devices fail certification on the first PCB layout, not in the lab. Five decisions to make early, a pre-scan rule, and the RED cybersecurity rules since August 2025.
A study presented in October 2026 found 8,547 control systems at European solar and wind parks reachable from the internet. Operators can’t always secure the site network; manufacturers can make it matter less.
In September 2026 a test firmware build reached customers’ smart fridges and some stopped cooling. Every team ships bugs; what matters is what stands between a build and the fleet.
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