Yes. Anything that's useful as a weapon, or as an adjunct to a weapon, can be targeted.
That's why radar stations, or AWACS, can be targeted too. They are not offensive weapons in themselves, but they work as adjuncts to bombs, missiles, or guns.
Numbers in a computer merely signify what you are willing for them to signify. In that sense, blockchain tech is no different from fiat currency. That piece of colored paper in your pocket is merely a promise of worth. People can renege on their promises, either because they want to or because they are forced to.
So tell me, how many hamburgers have you bought with Confederate Dollars or Nazi Reichsmarks lately?
Not really, that information gradually gets bit-rot and evaporates away to nothingness as website after website gets old and vanishes.
In the early days of the Internet, I often used to Google/AltaVista/Jeeves my own name. There used to be quite a few hits. Over the years, those old hits have just faded away.
Maybe so, but those of us who try to restore or emulate old stuff from those long ago times actually have to rely on contemporary information from Usenet because the old documentation no longer exists.
I spent 20-odd years enjoying how how mobile phones went from being huge 2-3 pound 'bricks' all the way down to the Nokia 100 gram 'chocolate bars' of the mid-2000s that fitted beautifully in my shirt pocket.
Then I watched in disbelief as phones began getting more and more swollen every year and got too large to hold comfortably in one hand. (or fit in your top pocket)
Time and again the phone-shop salesmen would look sideways at me when I said I didn't want the latest and greatest offering, but one of the older and smaller phones. My current phone is an iPhone 5S that I have kept for several years.
That's why radar stations, or AWACS, can be targeted too. They are not offensive weapons in themselves, but they work as adjuncts to bombs, missiles, or guns.