Sitting in the ground floor boardroom of Kroll in St Stephen’s Green in Dublin, Jason Smolanoff, a softly spoken and thoughtful American, is explaining a recent case involving a client who was the victim of a cyberattack by a nation-state. Smolanoff is loath to divulge the names of those involved – after all, he built a career in counter-espionage and counter-terrorism with the FBI. But the story resonates as an example of the lengths that some state actors will go to to obtain information and then to cover up the tracks.  The hackers took in the region of four terabytes…