this post was submitted on 21 Feb 2026
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[–] CADmonkey@lemmy.world 16 points 3 days ago (1 children)

A city near me has installed a device that tracks vehicles based on their tpms (Tire Pressure Monitoring System) sensors.

All cars after 2008 in the US have TPMS. Inside the tire, integrated with the vale stem, are little pressure sensors with a radio that broadcasts on the 315Mhz band. Each one uses a slightly different frequency so that your vehicle can tell which of the four tires is low.

So each vehicle in the US made after 2008 has four unique radio signals being broadcast from it, and now there are police departments with equipment that can track those signals, and can assign each car a signature based on the frequencies the sensors are broadcasting on.

[–] cyberpunk007@lemmy.ca 7 points 3 days ago (2 children)

That's alarming, but how much can these really vary? I'd be surprised if a lot of vehicles weren't the same.

[–] iglou@programming.dev 9 points 3 days ago* (last edited 3 days ago) (1 children)

Well, from my knowledge, the person you replied to is inacurrate. All tires will transmit at the same frequency. But every X seconds, when each tire transmits its data, it transmits an ID unique to its transmitter with it.

[–] dual_sport_dork@lemmy.world 8 points 3 days ago (2 children)

Every X seconds is pretty generous. My Subaru only seems to poll the sensors every few minutes, and only when the wheel speed is above 35 MPH or so, at least via what I've observed with my diagnostic tool. The sensors are battery powered and I suspect the low refresh rate is a deliberate gambit to conserve battery life.

You are correct on the ID point, though. They can contain up to 16 hexidecimal digits as far as I've seen, and while there doesn't seem to be any mechanism for truly enforcing uniqueness the chances of an ID collision are so low that you may as well consider it impossible. Some aftermarket sensors can be wirelessly reprogrammed with an arbitrary ID, though, which may be of marginal utility for the truly paranoid. (My diagnostic tool can do this, too. The intended use case is cloning the ID from an OEM sensor for a car whose TPMS relearn procedure is more trouble than it's worth.)

Regardless of your vehicle's polling frequency, most sensors can be woken up any time by a specific radio pulse, which my diagnostic tool can also do, and the range is surprisingly long. Just my car's own BMS where the receiver is (above the rear left wheel well) can pick up the sensors in my snow tire rims even when said rims are sitting in their storage rack inside my garage, about three car lengths away.

[–] iglou@programming.dev 4 points 3 days ago* (last edited 3 days ago)

If my memory serves well, it is configurable. I say X seconds because it can be 5, 10, 30, but of course also 60, 120... This is my programmer brain talking :)

Thanks for the comment though. Much more complete than mine.

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[–] maplesaga@lemmy.world 18 points 3 days ago (1 children)

Just like everyone is quitting facebook, ChatGPT, and all the other things people are boycotting that seem to never have anything happen to them.

[–] null@lemmy.org 7 points 3 days ago (1 children)

Already deleted my FB. Instagram is getting close with how many "suggested" posts they cram into my feed that should be just my friends.

[–] matlag@sh.itjust.works 10 points 3 days ago (1 children)

Not sure the lemmy crowd is representative of the general public trends.

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[–] trackball_fetish@lemmy.wtf 65 points 4 days ago (1 children)

Fun fact: lots of them have exposed cables that should not be cut with a long arm pruning pole found in your grandmother's shed.

[–] trackball_fetish@lemmy.wtf 19 points 4 days ago (10 children)

Another thing you should never ever do: mix paint and dot3 in a handheld pressurized garden poison sprayer.

[–] hector@lemmy.today 12 points 3 days ago (1 children)

Be aware brake fluid is like antifreeze, it tastes good to animals if they don't put bad taste in it, and kills them.

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[–] Newsteinleo 17 points 3 days ago (2 children)

How would I go about finding a Flock camera?

[–] CADmonkey@lemmy.world 10 points 3 days ago (1 children)
[–] Slovene@feddit.nl 5 points 3 days ago (2 children)

What are the chances that it's NOT a porn site?

[–] chiliedogg@lemmy.world 5 points 3 days ago* (last edited 3 days ago)

I suppose we could make Flock feeds into porn sites...

[–] CADmonkey@lemmy.world 5 points 3 days ago (1 children)

Be brave, my random Internet friend. Click the link. It's either the info you want, or it's titties.

[–] Newsteinleo 4 points 3 days ago

I was sorely disappointed to learn that the site did contain titties

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[–] Zier@fedia.io 129 points 4 days ago (2 children)

This is exactly what this company deserves, to be smashed out of business and history.

Reminder: If you destroy a camera, be aware that other cameras in the area may be recording you as well. Protect your identity.

[–] Agent641@lemmy.world 93 points 4 days ago (1 children)

Leave your fucking phone at home too.

[–] exaybachae@startrek.website 19 points 4 days ago* (last edited 4 days ago) (1 children)

Faraday bags work... But test them.

I got a cheapo $7 Chromebook sized bag that seemed to work for my SOs iphone. We don't use NFC so I couldn't test that.

No BT, WiFi, or Cell, and probably no GPS.

I only did casual testing.

The screen still showed the signal having low bars for WiFi and cellular, but it didn't actually receive a signal at all when trying to call or use the net, not even with the top of the bag open a sliver and my hand in there.

If the device was off or in airplane mode and in the bag, I'd be comfortable assuming it was safely hidden from tracking.

I haven't thoroughly tested my various personal devices, but I expect identical results.

I think everyone should probably have a bag like this around, in a go-bag or something, just in case. And it's safer to have your phone available than not, as long as it's secure (use a pin or password to lock it, use encryption, put emergency info on it for first responders).

[–] Agent641@lemmy.world 21 points 4 days ago

If you're going to use a Faraday bag, use it regularly, like every day at random times.

Imagine you are being accused of a crime. The crime occured at 8pm. The phone records show that your phone went dark at your house 7pm and then reconnected at 9pm at your house. The crime scene is 1 hour away from your home by foot. Records show this is the only time your phone went dark in a very long time.

So if you bag your phone (aluminium foil bags work pretty good too), do it regularly, randomly, and don't bag it and unbag it immediately before leaving or after getting home

[–] muusemuuse@sh.itjust.works 6 points 3 days ago

That’s why you do this as part of a massive crowd of people that don’t know eachother. Overwhelm them.

Bring laser pointers to protests

[–] LogicalDrivel@sopuli.xyz 137 points 5 days ago (18 children)

my neighbor hood has one right at the entrance. I make a point of flipping it off every time i pass it. Also, If you were curious how many of these violations of privacy are around you. Here you go- https://deflock.org/map

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[–] TheObviousSolution@lemmy.ca 54 points 4 days ago (1 children)

Fuck centralized surveillance.

[–] ramenshaman@lemmy.world 15 points 4 days ago (9 children)

I would like to have a brief discussion with whoever downvoted you.

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[–] njordomir@lemmy.world 10 points 3 days ago

I vandalized my own Ring cameras. It didn't feel right to resell them just so they can spy on me from someone else's front porch.

[–] XeroxCool@lemmy.world 36 points 4 days ago* (last edited 4 days ago)

I just learned HGTV has a Jan 7 2026 show called "Neighborhood Watch". It's like America's Funniest Home Videos, but it's all doorbell/security cameras. User-submitted, I think. I absolutely refuse to believe this was a casual idea from HGTV as they struggle to maintain viewership. There's no way this isn't funded by one of these companies, meant to continue making everyone comfortable with constant surveillance and increasing the desire to have constant recording devices to catch these one-off comedic moments.

Tagline: "Everywhere you go, cameras are recording. Your neighbors are watching."

[–] RampantParanoia2365@lemmy.world 45 points 4 days ago

Well, the CEO did openly invite and approve of this. In his own words, Flock cameras aren't forced on anyone. So the only logical conclusion is to destroy them if so desired.

[–] cohete@lemmy.world 14 points 3 days ago (3 children)

You most definatly shouldent make a cell phone app that you can put in front of the camera that just cycles through random plates and includes copies of conststution. I wonder if you can do 10 per second. 36000 per hour all day long.

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[–] ToTheGraveMyLove@sh.itjust.works 58 points 4 days ago (1 children)
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[–] BanMe@lemmy.world 41 points 4 days ago (1 children)

There's one a block from my house, and three blocks from my work, so they can see me coming and going each direction.

...BRB

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[–] DarkCloud@lemmy.world 67 points 5 days ago (1 children)

Similar to what happened in Hong Kong a few years back when the CCP introduced metal telephone poles chock full of monitoring equipment and cameras.

[–] Butterpaderp@lemmy.world 58 points 5 days ago (4 children)

Offtopic, but it's sad how all discussion about Hong Kong just slipped away into the void. I think this is the first time I've seen it mentioned in almost a year.

One of my friends just didn't even remember it happening, he thought I was making it up at first.

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[–] mrpollo@lemmy.zip 8 points 3 days ago (2 children)

Good. We need to teach these pigs a lesson

[–] korazail@lemmy.myserv.one 9 points 3 days ago (1 children)

The fun part is that these cameras are not owned, operated or property of your local jurisdiction. They are hardware/software as a service. IANAL, but I think Flock would have to sue you.

I have not personally de-flocked anything, but my local area doesn't have any that aren't tied to a business parking lot.

If some show up, I can't imagine a 5 minute walk with a hat, face mask and a can of spraypaint wouldn't be sufficient to disable one without risk. Might need a stool.

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[–] Earthman_Jim@lemmy.zip 8 points 3 days ago

Heartwarming.

[–] FuyuhikoDate@feddit.org 42 points 5 days ago (2 children)
[–] IratePirate@feddit.org 45 points 5 days ago

Yeah, it's a weird way of spelling "liberation".

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[–] Manifish_Destiny@lemmy.world 6 points 3 days ago

Hell yeah brother

[–] caboose2006@lemmy.world 18 points 4 days ago

Benn Jordan has done great videos on this stuff

[–] testaccount372920@piefed.zip 32 points 5 days ago (12 children)

How would you take such a camera down without being spotted and tracked? Do they not look in all directions?

Not asking for all the technical details on how to take one down, just curious how so many can be taken down with so few arrests after. I guess it's a matter of good disguises?

[–] Agent641@lemmy.world 65 points 4 days ago* (last edited 4 days ago) (4 children)

Leave your phone at home.

Don't drive your own car there, and don't get an uber.

Ride a scooter, bicycle, or walk.

Wear a dust mask, headphones (to prevent ear pattern recognition) and safety glasses.

Wear a high vis vest while working on the camera. The retro reflective strips show up as dazzling white on infrared cameras, washing out the image. It also helps make any witness assume you're a legitimate worker

Wear dark clothing with no logos over the top of something dorky, like a white Ralph Lauren shirt and golf shorts. Ditch the dark clothing if you even sense you might be stopped on the way home.

Put duct tape on the soles of your shoes to make the shoe prints indistinct.

Wear gloves, rigger gloves are fine, latex if you have nothing else.

Work quickly, never run (unless your under disguise is a jogging outfit).

if you see a cop, security, or any person that suspects you, believe in your heart and soul that you haven't committed a crime. Find a way to delete the act from your memory, become an innocent person in your own mind.

Emotional escalation to cop should be indifference, confusion, irritation, indignant, suspicion, and when detained or arrested, lawful but otherwise silent cooperation. That's how innocent people behave when suspected or accused of a crime. Once detained, say nothing except your name, age, DOB, address, license number ect and "I don't know, I need to speak to a lawyer." Even though they will ask you a thousand questions to try to get you to implicate yourself. There is nothing you can say that will talk you out of cuffs.

[–] brygphilomena@lemmy.dbzer0.com 25 points 4 days ago (1 children)

Specifically say you are invoking your right to silence and specifically say you are invoking your right to council.

If they continue to pester you after this, it's a violation of your rights and a lawyer will have more ammunition to defend you.

If they come back hours later and try talking to you again, you invoke them again. After a significant period of time (whatever the cop decides) they can try again to "see if you've changed your mind."

But just staying silent is not the same in the courts as invoking your right to remain silent.

People tend to want to talk and fill silence. You'll have to control your urges and learn to be comfortable in silence.

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[–] LemUser@lemmy.world 24 points 4 days ago (1 children)

They are beginning to disguise them in cones, barrels and small ones on a pole as small as rebar.

[–] partofthevoice@lemmy.zip 15 points 4 days ago (6 children)

Yeah, I was actually thinking about acquiring one myself. I want to dissect it, hook it up to some monitoring equipment/ software, see what I can learn about it… functionality, vulnerability, anything. But I’m also worried about the potential I accidentally show up on a video feed stored somewhere remote. I’ve been checking eBay for them, but honestly… there are several right by my home. We’ll see what happens, in time.

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