It's not at all like Apple "Find my Device". Someone could stealthily put an Amazon Tile in your car or bag and track you. Also it's so complex that it WILL be hacked and is creating a parallel network to the internet with opaque security. Extending a monopoly as well as being wrong in so many other ways.
https://www.theregister.com/2021/06/...sidewalk_mesh/
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Amazon devices that can connect to Sidewalk when it’s launched next week: Ring Floodlight Cam (2019), Ring Spotlight Cam Wired (2019), Ring Spotlight Cam Mount (2019), Echo (3rd gen and newer), Echo Dot (3rd gen and newer), Echo Dot for Kids (3rd gen and newer), Echo Dot with Clock (3rd gen and newer), Echo Plus (all generations), Echo Show (all generations), Echo Spot, Echo Studio, Echo Input, and Echo Flex.
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And it's using a UHF license free spectrum illegal outside the USA.
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“Amazon Sidewalk only exacerbates the privacy risks that Echo and Ring devices pose to the public," Albert Fox Cahn, executive director of the non-profit Surveillance Technology Oversight Project, told The Register.
"The new mesh network raises a wide array of concerns about how users’ data is potentially exposed to other device owners. Also, if Amazon is successful in expanding this mesh network, it could raise huge antitrust concerns, creating a parallel internet from countless Internet-of-Things devices. This risks giving one of the world’s worst monopolists control over not just our devices, but the internet itself."
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This is PLAIN ABUSIVE
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from June 8, its Sidewalk-capable devices will be opted into the network by default, and Tile compatibility will follow on June 14. After June 8, you can opt out at any time by disabling Sidewalk features in your device.
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The EFF's Director of Technology Projects Jon Callas told El Reg that although the security whitepaper “looks pretty good,” there is bound to be at least one bug or overlooked shortcoming that will affect someone somewhere.
For instance, he said a widespread mesh will make it a lot easier to secretly track someone with something like a hidden Tile.
Rather than wait for the Tile to go in and out of range of someone with the Tile app on their phone, during which it can report its whereabouts, with Amazon's Sidewalk in full effect, the Tile can be tracked anywhere and anytime it goes near a participating Echo or Ring device, at the very least. That makes it a lot easier to stalk people, from friends to spouses.
The risk of Sidewalk is not in its network use or privacy, but in the way that it creates opportunities for people to use it to track and stalk others
“A Tile tracker can tell you where your keys are," said Callas. "A pet collar could tell you where your dog is should they get away from you. It also permits someone to track someone else. Drop a Tile into your partner’s handbag, or your neighbor’s car, and you get to track them around.
"As Amazon Sidewalk becomes more widespread, a stalker can abuse it to stalk people better. There are no mitigations mentioned in any of Amazon’s papers, so we assume there are no restrictions on using it for stalking."
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Even WITHOUT Sidewalk, the Ring system tells Amazon too much.