QIMA Blog - Compliance, Quality & Research
Your source for expert advice on product safety, supplier compliance, food and agrifood standards, sustainability, regulations, and life sciences research.
IEC 62443-4-1 vs. ETSI EN 303 645: Which Security Baseline Fits Your Product?
Oct 5, 2026
If you build connected products, you have probably been told you need to comply with IEC 62443 or ETSI EN 303 645 , or possibly both. The two standards get lumped together in compliance checklists as though they were interchangeable.

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