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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What it takes to reach SL 3 in ISASecure CSA, by component type
Moving from SL 2 to SL 3 in ISASecure CSA adds 23 IEC 62443-4-2 requirements, 22 of them enhancements. What the step costs by component type and by FR.
ISASecure ICSA Core vs Advanced: what the higher tier actually adds
ICSA Core vs Advanced explained: what each tier is for, how 158 requirements become 182, which 24 are added and which the lab tests, and how to choose.
What it takes to move a zone from SL 2 to SL 3 in ISASecure SSA
Raising a zone from SL 2 to SL 3 in ISASecure SSA adds 30 IEC 62443-3-3 rows: two base requirements and 28 enhancements, two of them lab-tested. All 30, by FR.
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