With that much criminal energy behind it, you might even want to remove the wifi module or ground the antenna at this point.
If this data is worth enough, they could be using IOT 4G service.
Not saying it isn’t happening, nor that it won’t ever happen.
Anyway - Faraday living room?
So far the only benefit other than shielding you from electrosmog was to stop having to compete with your neighbors in an apartment complex for wi-fi bands.