A formal Pentagon cyber strategy may define which acts of digital sabotage constitute acts war that warrant conventional military retaliation. But cases clear-cut enough to justify such retaliation may be few and far between, experts say. The problem is attribution – identifying that an attack comes from the government of another sovereign state so its assets can be attacked, they say. “A military attack could be misplaced, as a result, but at the same time not responding will now be seen as a sign of weakness,” expert says.”]
Source: https://www.csoonline.com/article/2128662/cyber-war-sabers-rattle-across-the-globe.html