Cyber destruction growing
That appears to be the intent of Iran with its attacks in Saudi Arabia and elsewhere. Those attacks followed attacks by the US and Israel to destroy equipment in Iran's nuclear program. What the US needs to develop is a counter attack strategy similar to missile defense that intercepts the cyber attack and destroys the computers used to launch it. It has to be able to get past the zombie computers used in the attack to the place where the attack originated.
Corporate leaders have long feared hacking in service of fraud or spying, but now a new threat has taken hold: attackers, possibly with state support, who seem bent on destruction.