ISASecure and IEC 62443, explained with the numbers
What each certification program actually evaluates, how the security levels and device types change the scope, and where the common points of confusion come from — written by the assessors who run these evaluations.
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IEC 62443-2-1 audit evidence in an ACSSA evaluation: documents, interviews and inspection, never testing
How an ISASecure ACSSA evaluator gathers evidence on an installed IACS: documents, interviews and configuration inspection, never testing or device access.
Independent testing in ISASecure CSA: what the lab must test itself
ISASecure CSA flags 34 of its 166 functional requirements for testing by the lab itself. What the flag means, what happens to the rest, and what to prepare.
Independent testing in ISASecure ICSA: the 47 requirements the lab exercises
ISASecure ICSA flags 47 of its 182 functional requirements for testing by the lab itself, 40 of them at Core. What the flag means and what to prepare.
Independent testing in ISASecure SSA: eleven flagged requirements, one scan, one reference system
ISASecure SSA flags 11 of its 116 assessable rows for lab testing, plus one vulnerability scan on one reference system. What the lab tests and reviews.
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