Why? It's pretty simple, if we computerize everything a future AI is going to have more leverage over the world. If you believe Cory Doctorow when he says that everything is a computer, then everything is vulnerable to future AI.
My takeaway/TL;DR: OpSec is harder vs. AI (ever-vigilant pattern matching) than humans.
But it did drift into discussing a more offensive AI than passive monitoring done today.
How many sentences is TL these days? But yes, this is an offensive AI, and no, we aren’t passive-only today - look at the IoT botnets.