Amazon is about to share your Internet connection with neighbors. Here’s how to turn it off.

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  • 06/08/2021
There’s an eyebrow-raising technology buried inside millions of Amazon Echo smart speakers and Ring security cameras. They have the ability to make a new kind of wireless network called Sidewalk that shares a slice of your home Internet connection with your neighbors’ devices.

And on Tuesday, Amazon is switching Sidewalk on — for everyone.

I’m digging into my settings to turn it off. Sidewalk, which is built into Amazon devices dating back to 2018, raises more red flags than a marching band parade: Is it secure enough to be activated in so many homes? Are we helping Amazon build a vast network that can be used for more surveillance? And why didn’t Amazon ask us to opt-in before activating a capability lying dormant in our devices?

I recommend you opt out of Sidewalk, too, until we get much better answers to these questions. (Click here to jump to instructions on how to turn off Sidewalk.)

Sidewalk will blanket urban and suburban America with a low-bandwidth wireless network that can stretch half a mile and reach places and things that were once too hard or too expensive to connect. It could have many positive uses, such as making it easier to set up smart-home devices in places your WiFi doesn’t reach. (That can help your neighbors, and you.) But by participating, you also have no control over what sort of data you’re helping to transmit. In communities where Amazon Ring devices already over-police many doors and driveways, Sidewalk could power more surveillance, more trackers — maybe even Amazon drones.

Amazon seems oblivious to many obvious consumer concerns with its increasingly invasive technology. So let me say it: Remotely activating our devices to build a closed Internet of Amazon is not okay.

Amazon founder and CEO Jeff Bezos owns The Washington Post, but I review all tech with the same critical eye.

Amazon declined my request to interview an executive in charge of Sidewalk but over email said it was about making our tech work better. “We live in an increasingly connected world where customers want their devices to stay connected. We built Sidewalk to improve customers’ experiences with their devices and to benefit their communities,” said Manolo Arana, general manager of Sidewalk.

Reasons we would want Sidewalk, he said, include continuing to receive motion alerts from Ring security cameras when they lose WiFi or extending the range of smart lights. Later this month, Amazon is also adding Bluetooth lost-item tracker Tile and smart lock maker Level to the Sidewalk network. And it is partnering with CareBand, a maker of wearable sensors for people with dementia, on a pilot test including indoor and outdoor tracking and a help button.
But Sidewalk is also a vast new wireless network entirely controlled by Amazon — and paid for by us.

© Jonathan Baran/TWP Amazon devices including the third-generation Echo Dot contain a technology called Sidewalk that is capable of sharing a portion of your home Internet connection with neighbors.

How it works

Amazon is not the only big company working on getting more things connected to the Internet by piggybacking on us. But it’s doing it in a more aggressive way.

Modern iPhones collect and beam out tiny snippets of other people’s data for Apple’s Find My network, used to report the location of lost devices and AirTag trackers. The routers that Comcast puts in our homes automatically double as hotspots for other Xfinity customers, though they create a separate WiFi network for the public traffic.

With Sidewalk, Amazon is creating a more robust network. Your lowly Echo speaker (or other compatible device) is already connected to your home’s private Internet connection. When Amazon transforms it into a so-called Sidewalk Bridge, your device creates a new network of its own that’s not WiFi. Instead, it uses common Bluetooth to connect devices nearby, and another type of signal (using the 900 MHz spectrum) to connect to devices up to half a mile away.

This new Sidewalk network can’t carry as much data as WiFi, but it’s still impressive: Sidewalk signals from all the Amazon devices in your neighborhood overlap and join together to create what’s called a mesh network.

“WiFi is constrained mostly to your home; it doesn’t have the range to go into your backyard and into the neighborhood. Cellular offers long-range connectivity, but it is expensive. Sidewalk splits the difference between those two and allows us to put billions of things at the edge of the network,” Arana said.

But here’s the rub: Sidewalk authorizes your Echo to share a portion of your home’s Internet bandwidth. It’s up to 500 megabytes per month — the rough equivalent of more than 150 cellphone photos. Amazon caps it at a rate of 80 Kbps, which the company says is a fraction of the bandwidth used to stream a typical high-definition video. Still, this traffic could count toward your Internet service provider’s data cap, if you’ve got one. The bill will be paid by you, not Amazon.

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Which raises the question: Shouldn’t Amazon be paying us?

It’s not hard to imagine Amazon could use Sidewalk for its own business, such as to track packages or connect up its delivery trucks.

Arana said: “Our focus right now is to make our customers’ devices work better. I’m not able to comment on future roadmap plans.”

Is Sidewalk secure?

Amazon says it built Sidewalk with three layers of encryption, so that nobody can view the raw data passing through it — not Amazon, not the person who’s sharing their Internet.

Tech industry analyst Patrick Moorhead told me he is impressed by Amazon’s efforts to keep snoopers out. “I haven’t seen very many triple-protected, triple-encrypted systems out there,” he said. “That said, there’s no infallible system.” Even security standards for WiFi have been cracked over the years.
Some other security pros just aren’t keen on opening any kind of portal outside your home network’s secured perimeters, no matter what Amazon promises.

There’s no evidence hackers or independent researchers have found problems with Sidewalk — but it also has yet to become a high-profile target.

Building out Big Brother

There are also big-picture concerns. Today Amazon talks about Sidewalk as a way to help the roughly quarter of American homes with smart-home appliances get and stay connected. But Amazon doesn’t usually have small ambitions.

At the very least, Sidewalk could massively increase the reach of Amazon’s thriving but controversial Ring security business, which police forces tapped for more than 20,000 requests for footage in 2020. Sidewalk would allow people and organizations to put Ring devices in places that weren’t possible before.
“It is slowly eliminating the notion of ‘off-the-grid,’ ” says Matthew Guariglia, a policy analyst at the tech-liberties-focused Electronic Frontier Foundation. Even though Amazon is a private company, that doesn’t mean the surveillance tech it sells can’t be dangerous.

“As long as Amazon is storing all that data … all of that can be accessible to police. It’s impossible to think of things as just private or public surveillance anymore.”

amazon by Claudio Toledo is licensed under flickr Attribution 2.0 Generic (CC BY 2.0)