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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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.
IEC 62443-4-1 defect and update management: the SDLA practices product certifications come back to
How ISASecure SDLA evaluates IEC 62443-4-1 defect and update management: 15 rows, most seen only in the process audit, and the four requirements ICSA revisits.
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