Walk into any Best Buy this weekend and you'll see them stacked to the ceiling: shiny black boxes with "WiFi 7" printed in aggressive silver lettering.
A home network that finally keeps up with your 4K streams, your gaming rig, your smart fridge, and whatever else the internet of things has shoved into your life.
But here's the part the box doesn't tell you.
That $400 router on the shelf isn't just a faster pipe.
And the companies building it have quietly decided that your home's radio waves are a data goldmine.
WiFi 7, the newest standard rolling out across America, isn't just about speed.
It uses something called multi-link operation, which means your router constantly pings every device in range across multiple frequencies at once.
To do that efficiently, it has to map your home.
Researchers have already demonstrated that WiFi signals can detect whether you're breathing, how many people are in a room, and whether someone just fell down in the bathroom.
Your router manufacturer knows when you're home, when you're asleep, and how many devices your teenager is hiding under the mattress.
In 2024, one major brand settled an FTC case over secretly collecting browsing history through its routers.
Americans bought more than 20 million WiFi 7 routers last year, many upgrading from hardware that was already fast enough for their actual internet plan.
A 1-gigabit connection doesn't get faster because your router speaks a new protocol.
It gets faster when your ISP stops throttling you.
If it's less than four years old and handles your square footage, you probably don't need WiFi 7 yet.
Second, log into your router's admin panel and look for anything labeled "analytics," "telemetry," or "network insights." Turn it off.
Third, if you do upgrade, buy from a company that sells hardware and not advertising.
Read the privacy policy before the spec sheet.
The dirty secret of the smart home era is that convenience has always been subsidized by surveillance.
Your router is just the latest appliance to join the club.
The point isn't that WiFi 7 is bad technology.
The point is that the box at Best Buy isn't a neutral utility anymore.
Final Thoughts
It's a listening device with a fan, and the faster it gets, the more it can hear.