Both cyber and bio threats are embedded in great leaps of technological progress that we would not want to give up, enabling rapid communications, dramatic productivity gains, new drugs and vaccines, richer harvests, and more. But both can also be used to harm and destroy. And both pose a particularly difficult strategic quandary: A hallmark of cyber and bio attacks is their ability to defy deterrence and elude defenses.
Think of it this way: The most sophisticated cyberattacks, like Stuxnet, rarely leave clear fingerprints; bioweapons, too, are famously difficult to trace back to a perpetrator. But the concept of deterrence depends on the threat of certain retaliation that would cause a rational attacker to think twice. So if the attacker can’t be found, then the certainty of retaliation dissolves, and deterrence might not be possible.
What would a president of the United States say to the country if thousands of people were dying from a disease or trapped in a massive blackout and he did not know who caused it? A ballistic missile leaves a trajectory that can indicate its origins. An airline hijacker might be caught on video or leave behind a ticket or other telltale clue to his identity. When someone is shot with a weapon, the bullet and firearm can be traced. Not so for many cyber and bio threats.
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