I will readily acknowledge your superior experience in the field. I won’t pry for classified details because it’d be rather insulting to suggest you’d part with them, but could you perhaps explain roughly how, in principle, one may establish the provenance of an attack with such fidelity, especially to be sure that it is Russian, but not be sure if merely by nationality or by governmental design?
This is not my field—clearly!—but what I’ve seen so far has not inspired great confidence.
