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.
How to read an ISASecure SSA certificate and report: zones, levels and user-enforced mitigations
How to read an ISASecure SSA certificate and its SSA-303 report: capability levels per zone, the ten report sections, and the mitigations the user must apply.
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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