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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One certificate, several levels: how ISASecure SSA assigns a capability security level per zone
How ISASecure SSA assigns an IEC 62443 capability security level to each zone of a system, why one certificate can carry several levels, and how to specify it.
ISASecure SSA vulnerability testing: the scan where each zone sets its own pass threshold
How VIT-S works in ISASecure SSA: one known-vulnerability scan of every IP-addressed component, with the pass threshold set per component by its zone's level.
What ISASecure SSA certification actually evaluates
ISASecure SSA certifies a control system as sold against IEC 62443-3-3, with a capability security level per zone. Four elements, 116 functional rows: the map.
What it takes to move a zone from SL 2 to SL 3 in ISASecure SSA
Raising a zone from SL 2 to SL 3 in ISASecure SSA adds 30 IEC 62443-3-3 rows: two base requirements and 28 enhancements, two of them lab-tested. All 30, by FR.
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