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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After the certificate: ACSSA surveillance in years one and two, recertification in year three
How an ISASecure ACSSA certificate stays valid: 36 months, surveillance in years one and two, recertification in year three, nonconformities and suspension.
The ACSSA assessment process: four phases and the report you receive
How an ISASecure ACSSA evaluation runs: the plan you approve, the four ACSSA-304 phases from risk assessment to report, and how to read the ACSSA-303 report.
An asset owner's installed IACS: IEC 62443 asset owner certification scope under ISASecure ACSSA, and the six documents that define it
ISASecure ACSSA certifies an asset owner's installed IACS, bounded by six change-controlled documents: who may apply, what is in scope and what is carved out.
ACSSA evaluation results: ten result types, and the one that fails
ACSSA records ten result types across four IEC 62443 parts. Only Not met fails; three others pass only with approved documentation; unsampled zones get none.
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.
SDA-IC: the 93 lifecycle requirements checked per IIoT component, and the five ICSA-only practices
What ICSA's SDA-IC review checks per IIoT component: 93 of the 118 IEC 62443-4-1 lifecycle requirements, 16 IIoT-specific rows and five ICSA-only practices.
The Security Maintenance Audit: how an ISASecure ICSA certificate stays valid
How the ISASecure ICSA Security Maintenance Audit works: four IEC 62443-4-1 requirements, four topics, when audits fall, findings, suspension, withdrawal.
SDLA certificate validity and recertification: how an ISASecure SDLA certificate is kept
How long an ISASecure SDLA certificate lasts, 36 or 12 months, how a recertification audit renews it, and why the scheme has no surveillance or suspension.
Full or readiness evaluation: the SDLA choice that sets your certificate at 36 or 12 months
ISASecure SDLA has two evaluation methods. One requirement passed by readiness evaluation sets the certificate at 12 months, not 36. The 21 rows that decide it.
What counts as a major nonconformity in an IEC 62443-4-1 audit: the 31 SDLA minimum requirements
In an ISASecure SDLA audit a finding is major when no evidence exists, or when one of 31 minimum requirements is applied inconsistently. The full list.
IEC 62443-4-1 certification levels: why ISASecure SDLA has none and every requirement must pass
ISASecure SDLA carried certification levels until 2018. Today it has none, and no maturity level either: every applicable IEC 62443-4-1 requirement must pass.
The SDLA prerequisite for CSA, ICSA and SSA: one process audit, three product schemes
ISASecure CSA, ICSA and SSA each require a valid SDLA certificate. What the process audit settles once, what every product scheme re-checks, and how to plan.
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.
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