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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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Security levels10Tiers (Core / Advanced)5Device & component types9Assessment streams6Testing & verification11Evidence & artifacts16Independent testing5Maturity levels4Sampling1Scope & boundaries16Surveillance & maintenance4Certification process20Common component constraints (CCSC)1Cost & effort3Comparisons4Roadmaps & readiness1
2 articles match your filters
CSAIntermediate
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.
Sep 8, 20268 min readRead
CSAIntermediate
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.
Sep 8, 20268 min readRead
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