I think stuff like this will come up with increasing frequency. Anyone can now buy a high-res motion detection camera that can perform 24-hour surveillance for

I think stuff like this will come up with increasing frequency. Anyone can now buy a high-res motion detection camera that can perform 24-hour surveillance for ~$25 with sufficient storage (motion-only) for years. Very easy to completely remove someone's privacy unless they keep their curtains/blinds closed at all times. A slightly more expensive 4k or 8k cam is enough to surveil an entire skyscraper worth of people/families at once. Is it illegal?