this post was submitted on 23 Aug 2026
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260
Comcast turns your Xfinity WiFi into a home motion detector (www.bleepingcomputer.com)
submitted 1 day ago by just_another_person@lemmy.world to c/technology@lemmy.world
66 comments fedilink hide all child comments
 

Make no mistake, this is 100% going to be Comcast's alternative to more expensive surveillance options a la Flock, or workplace presence sensor arrays.

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[–] empireOfLove2@lemmy.dbzer0.com 15 points 1 day ago (3 children)

Xfinity is absolutely collecting (and probably selling) data on the traffic of every device on your network.

They're doing that anyway via the modem. Unless you are tunnelling everything your ISP sees every byte you send.

[–] renegadespork@lemmy.jelliefrontier.net 9 points 1 day ago

You can also get your own modem, but that doesn’t change the fact that yes, you need to use a VPN for any external traffic you don’t want your ISP seeing.

However, ISP controlled routers provide them direct visibility into your LAN, which they otherwise wouldn’t see. This gives WAY more detailed information about you and your behavior, i.e. the original article.

[–] SolacefromSilence@fedia.io 3 points 1 day ago (1 children)

By tunnelling, you mean using a VPN?

[–] BlackVenom@lemmy.world 12 points 1 day ago (2 children)

Yeah but to clarify, encrypted traffic is still encrypted. They can't see specifics beyond the sites you went to, urls, dns queries, etc... to hide that you'd need a VPN.

[–] Dhs92@piefed.social 6 points 1 day ago

You can hide DNS through DoT/DoH as well at least

[–] inmate_p01135809@lemmy.world 1 points 1 day ago

Wouldn't companies also be able to do it on any WiFi device, like a phone or a smart watch?