I am more than a little concerned that since the miniaturization and commoditization of spy hardware (miniature microphones, cameras, and wireless communication), that run-of-the-mill consumer electronics are being bugged by default. Given the cost is pennies or just a couple dollars, from an espionage perspective, it'd be worth it to spend a few hundred million or even billion putting bugs into literally everything…
This caused quite the stir about a month ago: https://news.ycombinator.com/item?id=29555093
TikTok, Facebook (for the FBI/CIA), and other platforms are probably lower hanging fruit. People just accept the surveillance, and there's not much reverse engineering one can do to determine what's being done with your data.