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 ISASecure CSA certification actually evaluates
ISASecure CSA certifies a component against IEC 62443-4-2: 166 functional requirements, four component types, three assessment streams and one security level.
Cloud links, wireless radios and the per-interface rule in ISASecure ICSA
In ISASecure ICSA, cloud and wireless links are ordinary accessible interfaces. How the per-interface rule and the untrusted-network declaration set the effort.
What ISASecure ICSA certification actually evaluates
ISASecure ICSA certifies IIoT devices and gateways against IEC 62443-4-2: 182 requirements, two device types, a Core or Advanced tier and a maintenance audit.
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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