Exactly what /private/ group would have motive for this? Possibly a human rights activists' group, which knows the implications of such a hack ? Notice that o

Exactly what /private/ group would have motive for this? Possibly a human rights activists' group, which knows the implications of such a hack ? Notice that only the subject line of the emails were accessed, not the contents. I am not saying that it is the case, but your question brings forth this possibility.