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Xfinity using WiFi signals in your house to detect motion

xfinity.com

41–50 of 517 posts

Re: Xfinity using WiFi signals in your house to detect motion

#41
In case anyone is skimming the headline and comments: It's not enabled by default. This is an optional feature that you have to find, turn on, and then select up to 3 WiFi devices to use as reference signals:

> Activating the feature

> WiFi Motion is off by default. To activate the feature, perform the following steps:

The actual title of the article is "Using WiFi Motion in the Xfinity app".

Re: Xfinity using WiFi signals in your house to detect motion

#42
The term for this sort of thing is "WiFi sensing". Relevant HN thread from 2021 ("The next big Wi-Fi standard is for sensing, not communication (2021)"): https://news.ycombinator.com/item?id=29901587

As far as I can tell, devices were already on the market when that thread was made. 802.11bf was standardization to help along interoperability and future products.

Re: Xfinity using WiFi signals in your house to detect motion

#44

One more reason not to use an ISP router, although in this case most of us are at minimum carrying around GPS homing beacons in our pocket so the carriers already know where we are.

And now we also know the reason why they give away unlimited data for free when you use their router, but not when you want to use your own router.

I can turn off the WiFi on my ISPs (Cox) router. I just have it port-forward everything into my own wifi-router where I manage it from there.

Re: Xfinity using WiFi signals in your house to detect motion

#45

Earlier quoted context omitted.

If it lets you. I think Bell modem+router+AP devices always broadcast a TV network with no way of disabling it whether you have TV service or not.

That's what a good-ol' Faraday cage is for.

Or unplugging the internal antennas. Only on equipment you own, of course.

Re: Xfinity using WiFi signals in your house to detect motion

#46

Xfinity won't give folks in certain locales (maybe everywhere in the US?) unlimited bandwidth unless they use their modem/router. This seems like a good reason that practice should be illegal.

So use their router, but connect your own to it. Then turn off the WiFi in their equipment

I'm doing the first bit, but I can't turn off the wifi -- only stop broadcasting my "personal" network. And actually, as I went in to make sure that was the case, I saw that broadcasting of my personal network had been forcibly turned back on. Lovely!

Re: Xfinity using WiFi signals in your house to detect motion

#47

> Subject to applicable law, Comcast may disclose information generated by your WiFi Motion to third parties without further notice to you in connection with any law enforcement investigation or proceeding, any dispute to which Comcast is a party, or pursuant to a court order or subpoena. Sounds like, at least in some limited circumstances (using the provided WiFi AP, having this feature turned on, etc), ISPs are goi…

Curious: What about adding a small battery powered WiFi device to your dogs collar? Would that look like a person moving around the house? What about a WiFi controlled mini drone that flew around you house?

[Note: this should be illegal]

Re: Xfinity using WiFi signals in your house to detect motion

#48
post #4

I remember reading this paper when it came out, didn't think it would be commercializable, and here we are. https://dl.acm.org/doi/10.1145/2486001.2486039

I have a sneaky suspicion this is not something that Xfinity/Comcast just woke up one day and thought they should implement. This has all the hallmarks of the treasonous surveillance state injecting itself to instrumentalize corporations to claim they’re not violating the supreme law called the Constitution if they simply make others commit the treasonous crimes against the people. Because we all know, of course, the…

That’s speculation. In the article, you can see that it’s meant as a pseudo-alarm system. It’s plausible that someone at Comcast thought this is a value-add. (Netgear already offered this as a feature on their routers, it’s not a novel concept.)

Even within tech circles, lots of people aren’t worried about privacy and even have indoor cameras in their homes.

Re: Xfinity using WiFi signals in your house to detect motion

#49

> Subject to applicable law, Comcast may disclose information generated by your WiFi Motion to third parties without further notice to you in connection with any law enforcement investigation or proceeding, any dispute to which Comcast is a party, or pursuant to a court order or subpoena. Sounds like, at least in some limited circumstances (using the provided WiFi AP, having this feature turned on, etc), ISPs are goi…

You can turn the customer AP off; however, the Comcast Customer Shared WiFi is always on. This is true even for Comcast Business accounts. You're expected to be a hotspot for their other customers. Which is one of the main reasons I bought my own modem.

[deleted]

Re: Xfinity using WiFi signals in your house to detect motion

#50

Earlier quoted context omitted.

So use their router, but connect your own to it. Then turn off the WiFi in their equipment

I'm doing the first bit, but I can't turn off the wifi -- only stop broadcasting my "personal" network. And actually, as I went in to make sure that was the case, I saw that broadcasting of my personal network had been forcibly turned back on. Lovely!

If you don't broadcast your SSID, then how can device manufactures have hyper accurate location services available when GPS is not? You're not participating in the system! Hell, as much money as theGoogs gives to be the default search to various companies, would they not be willing to pay ISPs to keep that option on? I'm just throwing ideas out that I know nothing about, but I don't see why they would be opposed to the concept.
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