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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CCSC explained: the four IEC 62443-4-2 constraints that apply to every component
IEC 62443-4-2 has a second axis beyond the seven foundational requirements: four common component security constraints. What each means for a CSA certificate.
The four IEC 62443-4-2 component types, and why the type determination decides your CSA scope
Software application, embedded device, host device or network device: which IEC 62443-4-2 component types apply to your product, and how they set CSA scope.
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.
SDA-C, FSA-C and VIT-C: what each ISASecure CSA assessment stream proves
The ISASecure CSA assessment process, stream by stream: what SDA-C, FSA-C and VIT-C each prove, the five result outcomes, the pass rule and the certificate.
The SDLA prerequisite: why ISASecure CSA needs it, and what the SDA-C artifact review adds
ISASecure CSA requires a valid SDLA certificate. What the process certificate covers, what the component-level SDA-C review adds, and what to prepare.
CSA security levels 1 to 4: what each level actually adds
IEC 62443 security levels explained through ISASecure CSA: what SL 1 to SL 4 are built to resist, how many requirements each adds, and how to pick a target.
ISASecure vulnerability identification testing: how the pass threshold scales with security level
ISASecure VIT pass criteria: one severity band is added per security level, the scan is identical at every level, and a pass never requires zero findings.
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