ISA/IECISA/IEC 62443IEC 62443: Standards Framework & Series OverviewEASYFree question
The IEC 62443 series did not originate as an ISO/IEC document. From which body's earlier work did the series largely evolve before its international publication?
- A.The ENISA industrial control systems task force
- B.The NIST SP 800 series working group
- C.The ISA99 committee of the International Society of Automation
- D.The IEEE 1686 substation security workgroup
Why C is correct
IEC 62443 grew out of the ISA99 standards committee's work, and many documents carry dual ISA/IEC numbering reflecting that lineage. NIST, ENISA, and IEEE produced separate, related guidance but did not author this series.
Know someone studying for ISA/IEC 62443? Send them this one.