If it's any help, it's only listening for its wake word although it does respond to something that sounds similar from time to time. When that happens, or it gets no response it can handle, it goes dormant again. I can't comment on the hacking issue, I'm not technical enough for that, but my initial guess is that hackers would need to get past your router and into your network first so I'd make sure that's buttoned down with all its securities in place. I'll leave it now to others here who will have more reassuring (or maybe alarming - in which case I'm all ears too!) comments to make.