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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One certificate, several levels: how ISASecure SSA assigns a capability security level per zone
How ISASecure SSA assigns an IEC 62443 capability security level to each zone of a system, why one certificate can carry several levels, and how to specify it.
IEC 62443-3-3 requirements: how ISASecure SSA evaluates all 100 clauses in FSA-S
ISASecure SSA's FSA-S stream covers every clause of IEC 62443-3-3: 51 system requirements and 49 enhancements, laid out as 116 rows and scored zone by zone.
A system as sold: IEC 62443-3-3 system certification scope under ISASecure SSA, and what falls outside it
ISASecure SSA certifies a control-system product as sold, at a version, in a fixed or scalable layout: the four eligibility criteria and what falls outside.
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