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Is your DeltaV System patched against WannaCry?

Updated on 12May2017, the KBA AK-1300-0005 details Emerson approval of the March 2017 Windows updates that patch vulnerability against the unprecedented global cyber-attack caused by the WannaCry virus.  

If not installed yet, can you safely say your system is network isolated sufficiently to prevent infection?     

www3.emersonprocess.com/Systems/Support/documentation/deltav/kba/AK-1300-0005.pdf