Don't worry, they're monitoring regardless of you using the service.
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- Get a wifi router and install OpenWRT on it
- Put your xfinity router at http://10.0.0.1/ into bridge mode plug in your OpenWRT
- Let xfinity fuck itself, you just get a data pipe not spying
Time to wrap the modem in foil
EDIT: it takes way more foil than you’d think to block the ssids from being seen. Make sure to get the top and bottom of the device as well.
PSA: If you can afford your own a retail router, it’s always a better idea than using the one provided by your ISP. Make no mistake, Xfinity is absolutely collecting (and probably selling) data on the traffic of every device on your network.
Ubiquiti isn't perfect but they make a really good product and you don't have to connect it with a cloud
I could give 2 shits if China is spying on me.
Someone will figure out how to use the backdoor on the Chinese router. Then they can bypass your firewall. Now your router and all of your insecure IoT devices will be part of their botnet. They will sell your internet connection as a residential proxy or use it to DDoS websites.
Everybody hacks everybody
Man, the Snowden leaks had examples of 5th to 6th party docs retrieved from hacking intelligence agencies who had hacked intelligence agencies who... You get the point
5 eyes countries literally spy on their own citizens by proxy, retrieving information from each others' agencies directly
You could also see if that cheapo TP-Link can run OPNSense or ddwrt, that way at least the software on the device has no chance of being compromised.
Everyone is really readily accepting of china potentially spying on them whenever this topic comes up, and I'm just kinda curious why you think chinese companies don't sell that user data to western companies just as western countries do for china?
https://spycloud.com/blog/state-secrets-for-sale-chinese-hacking/
China’s state-sanctioned data collection and intelligence apparatus is leaky. We have observed a vast ecosystem of corrupt insiders siphoning data from China’s state-sponsored data collections apparatus and selling it on the black market. This threat activity most acutely affects Chinese citizens, whose personal data is readily available to any paying customer.
Cybercriminals from the Sinosphere appear to be increasingly present in Western digital crime spaces. This trend seems to be somewhat driven by Chinese scam and smishing actors aggressively and successfully targeting overseas victims. We frequently observe Chinese-language actors re-sharing (or sometimes taking and attempting to re-sell) data breaches from English-language forums in Chinese-speaking communities.
Countries like China rely a lot of independent local groups doing the dirty job so they can shield their national reputation by "taking care of" individual groups as they become a liability. Russia and others do it too. Everybody hacks everybody. Some of these groups target both foreigners and their own. Sometimes for domestic spying, sometimes just for plain scams.
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.
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.
By tunnelling, you mean using a VPN?
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.
Wouldn't companies also be able to do it on any WiFi device, like a phone or a smart watch?
I work for a different large ISP who provides modems and routers to our customers, but not this specific feature (being a bit vague because I know at one point mentioning the company’s name on social media would result in the post being reviewed by the social media team/referred to security for anything discussing internal processes, and while Lemmy probably isn’t on their radar I’d rather not risk it).
The amount of data we can see if you’re using our routers is pretty crazy, and most people have no idea. We can see exactly what you have on your network and what it’s doing. If you’re just using the modem and not the router, we have much more limited visibility. We don’t have the capacity to monitor everything everyone is doing all the time, so if you’re using your own equipment (and you’re not using our DNS service), it’s unlikely we have much data on your activity. Storage in the scale needed to store what everyone is doing gets expensive.
I’ve always used my own equipment, and I make sure everyone in my family has their own equipment as well. I would absolutely advise against using your ISP’s equipment if your goal is privacy.
I encourage everyone with the ability to do so to at least try to run their own networking, or even just periodically examine the logs. The weird things I’ve discovered about random devices on my network have made me seriously question what the fuck companies are doing.
Can you recommend some trustworthy hardware?
I know gl.inet is probably best for routers, but are any of the mainstream brands more trustworthy than others? TP-Link, Ubiquiti, etc.? I recently got a Zyxel, are those okay?
Regardless of the basic privacy invasion that we all know Comcast is doing. Buy your own cable modem and router. Comcast charges you to use theirs, so they pay for themselves in a couple years.
They used to charge you more for unlimited data if you didn't use their modem. Renting their modem plus getting unlimited data was $30/month, but just getting unlimited data with your own modem was $50/month.
Not relevant any more though, as (at least in my area) they completely removed the data caps.
I'm so glad I have a local ISP that provides 10Gbps for cheaper than Comcast's 1Gbps.
Did they change that really recently? That was still a thing two years ago with Comcast. It is the only reason I still have their modem.
The clue is the last line of their comment where they say they have a competitor offering 10Gbps which is why Comcast removed the data cap in their area. AFAIK it's still in place where I'm at because the only other option is CenturyLink 100mbps DSL.
In my area, they removed the data caps last year, when they also rolled out the higher upload speeds (eg the gigabit plan now has 350Mbps upload speed instead of 25Mbps). I don't think they've rolled that out everywhere though.
They also have a habit of keeping people on old plans that are either slower or more expensive. If you're still using Comcast/Xfinity, check their site and see what they offer to new customers at your address. (you may need to use an internet connection other than your Comcast one, otherwise they may detect that you're an existing customer)
Haven't seen that one. Everywhere I've been they tack on $5 a month or so to have their router. Last one I bought was $80 2 years ago, so it's already paid for itself.
Their pricing can differ by region. Not every region got the data caps back when they rolled them out.
It also depends on competition - if there's a lot of competition in your area, Comcast will have better deals compared to if you live somewhere where Comcast is the only option.
I used to live in an apartment that had an exclusivity deal with Comcast (residents were only allowed to use Comcast for internet service). Now I live somewhere in the same county where there's three different fiber providers in addition to Comcast, and their prices here are noticeably cheaper vs the old apartment.
It's always been a ripoff from the start. The modem / router is far cheaper than whatever they charge you to rent it over a year. Additionally they were broadcasting public wifi hotspots from your rented modem for a while (probably still are) and now this. Having said that, walk into any random friend's house, and what will you see? A big stupid rented Comcast modem.
I tried... Comcast would "forget" the modem 3 times a month and would have to call and read them the MAC address again etc... fuck Comcast
Probably a modem problem honestly. I've been on and off comcast a few times and 3 different modems over the years. Only issue I've had were when my old ones got too out dated.
So glad I was able to get an alternate ISP. A good chunk of my life, Comcast was the only high speed ISP in the area.
If alternatives to Comcast were available was something I have been willing to pay higher rent for in my life.
What if you just use it as a pass through by plugging it into their router and then wrap theirs in foil?
They've changed it since covid so now if you use their modem/router combo, you get unlimited data for free. If you don't use their modem and router, you have to pay $30/mo to remove the data caps or keep yourself under 1.2TB for the month.
Yep it will get used by advertisers to know how many times you get up while watching netflix, or by police to know when to conduct a raid.
I remember the scientific article of this technology as a proof of concept. Honestly it didn't take an ISP very long to weaponize it offer it as a service.
Last time I had to use their services I wrapped their modem/router that they forced me to use in a roll of aluminum foil and ran one short ethernet cable out to use my own router with whatever I want. Blocked all their public WiFi you can't turn off and roasted that thing. I was genuinely surprised that it still worked when I gave it back.
Guess I'm injecting metal into my exterior walls and lining my blinds with tin foil
If Google and Apple start doing this with Bluetooth and WiFi on Location Services, they're not that far off the The Dark Knight sonar scene:
I did like that old Reddit post where someone did the math on the charges he’d get for this and everything else was a rounding error compared to the hacking charges
That's what they are deploying. This has been possible for awhile, but has recently gotten much creepier: https://groundy.com/articles/wifi-densepose-full-body-tracking-through-walls-using-your/
I had (still have) my own modem, but switched to their cheep "prepaid" Xfinity NOW service. Fast enough for my needs but I'm annoyed to learn I can only use the refurbished modem they have given me. No idea if its capable of presence monitoring but Its one of their old ones and I'm sure it already leaks metrics I'd rather not share.
OPs article links to another article at TechCrunch . That article states:
As first reported by The Verge, the new Wi-Fi Motion feature works for advanced Xfinity gateways XB7 and newer models and is opt-in, which means users can choose whether to switch on the feature in the Xfinity app.
So it seems like for now it's only this one model that can do it, if you believe them. Frankly, I wouldn't sniff that opt-in claim either because I'm fairly certain I know which orifice they pulled it out of.
If it's just a modem with no WiFi, then it's not capable of this specific thing.
I like my no BS ISP that allows me to use any retail router matching their specs. One thing I just don't have to worry about.
Fun fact: I have my device in airplane mode 90% of the time and only use WiFi. My device ID/name is "Unknown device" specifically so it looks like random or no good. I also use randomized Mac addresses.
I'm free of xfinity/Comcast, but for anyone else I know who uses it, I freely offer my professional IT tips to change DNS, recommend modem/gateway, etc.
Hopefully my personal router isn't being used by the ISP for this sort of thing. Odds are, they probably just do it, because capitalism is sucktackular by default.
And of course all the data will be kept, and sold for profit
Soon they'll add cameras as well that you can hang up in your kids rooms, totally safe, Comcast will make sure the data will be as profitable ad possible, they'll find the right target audience for it
Can they do it with any router, or only the Xfinity branded devices?
Looks like it's a feature of the router they provide you if you don't bring your own.
One more reason I’m glad I bought my own modem and router
just beware this is their implementation but it is possible to detect movement in wifi signal without special equipment. netgear, tp-link and a few more were found to have backdoors in them for authorized remote access via ssh. opnsense, pfsense, ipfire, openwrt i believe haven't been found to include these backdoors, so basically don't trust any closed/proprietary source routers.
At this point, if I didn't build it and install the OS, it isn't secure enough for my home.
I, for one, am looking forward to a plugin to do this with OpenWRT and Home Assistant for my own purposes.
I'm not sure about OpenWRT, but you can do WiFi motion detection with an ESP32.
Yeah, I found that one. Still, I'd prefer it to be built into my WAPs instead of having to use separate hardware, even if I do have extra ESP32s sitting around.
I mean, maybe if I could just tack it on as an extra function on some other device I was already going to be using an ESP32 in, but (especially in microcontroller-land as opposed to full preemptively-multitasking PC land) that sounds like maybe more complexity than I want to deal with.
Wow measuring presence by WiFi attenuation through the walls? That’s a lot more than motion. They’ll be able to tell when there’s a party at your house, or which rooms you use the most, or how often you cook dinner at home, or how long you spend in bed each night.

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