"Your" here means "anyone".

The inside of a lawmaker's house? A general's? A CEO's? Why would anyone ever want insider information, including possible blackmail evidence, from them?

Let's just say a family member has a very important and somewhat secretive job. The most classified meetings don't happen in our home, of course, but for a state adversary even small clues can be what's needed.

(So why get a roving camera in the first place? We judged that one from a historically and currently aligned state would be safe enough, even though it's not ideal.)

Why would the Chinese government want to regularly launch cyber attacks against US infrastructure, except it's been happening for years? US security companies and governments have been defending against it for years and have even cataloged the state-sponsored attack groups.

https://en.wikipedia.org/wiki/Advanced_persistent_threat#Chi...

It's very easy to think other people are being paranoid when you're ignorant about the topic.

Blackmail for one: "I'll wage a campaign to flood the Internet with pics of your half dressed wife unless you....". That will work on some people, discovering extramarital affairs, or proving you know intimate details about the inside of someone's house, along with threat of physical violence will work on others. You just need to be sufficiently creative. You can parlay the successes from one target to the next: "I can get both of you divorced unless you install the rootkit on your work's network"

I will reference a quote I originally heard on HN years ago, though: the audio surveillance is magnitudes more valuable than the video.

Knowing how people live moment to moment is how you can know how to extract money from them