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What your Bluetooth devices reveal

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Re: What your Bluetooth devices reveal

#171

Post by Asmod4n »

throwaway27448 wrote: post #170
Gigachad wrote: post #82

Earlier quoted context omitted.

It’s actually even easier, your car has a plate on the front with a unique ID that a camera scans, often to automatically track your park time for ticketing. I can’t really care about obscure Bluetooth tracking when every business has CCTV doing facial recognition.

The plate is pretty trivial to fake though. For one thing you can just remove it, but it's trivial to alter with just spray paint. Or using an outdated plate, or someone else's plate, etc. it's identifying sort of how an phone number is supposed to be identifying: nominal, but not secure and trivially abused for fraud

In Europe and the US all new vehicles now have a visible ID under their front window glass, it’s called a VIN. It’s even standardized where it must be.

Re: What your Bluetooth devices reveal

#172

Post by omgmajk »

hammock wrote: post #128
Gigachad wrote: post #82

Earlier quoted context omitted.

It’s actually even easier, your car has a plate on the front with a unique ID that a camera scans, often to automatically track your park time for ticketing. I can’t really care about obscure Bluetooth tracking when every business has CCTV doing facial recognition.

Wait they use this for parking meters?! Which cities?

Here in Sweden it's uncommon. Especially in big parking lots/houses.

Re: What your Bluetooth devices reveal

#173

Post by caseyohara »

Asmod4n wrote: post #171
throwaway27448 wrote: post #170

Earlier quoted context omitted.

The plate is pretty trivial to fake though. For one thing you can just remove it, but it's trivial to alter with just spray paint. Or using an outdated plate, or someone else's plate, etc. it's identifying sort of how an phone number is supposed to be identifying: nominal, but not secure and trivially abused for fraud

In Europe and the US all new vehicles now have a visible ID under their front window glass, it’s called a VIN. It’s even standardized where it must be.

Are there cameras that can actually read VINs on moving vehicles?

Re: What your Bluetooth devices reveal

#174

Post by franga2000 »

throwaway27448 wrote: post #170
Gigachad wrote: post #82

Earlier quoted context omitted.

It’s actually even easier, your car has a plate on the front with a unique ID that a camera scans, often to automatically track your park time for ticketing. I can’t really care about obscure Bluetooth tracking when every business has CCTV doing facial recognition.

The plate is pretty trivial to fake though. For one thing you can just remove it, but it's trivial to alter with just spray paint. Or using an outdated plate, or someone else's plate, etc. it's identifying sort of how an phone number is supposed to be identifying: nominal, but not secure and trivially abused for fraud

It's trivial if you're concealing your conceal your identity when committing a crime, but a huge pain in the ass and a crime itself if you just want to protect yourself from creeps tracking you.

Re: What your Bluetooth devices reveal

#175

Post by nandomrumber »

palata wrote: post #160
nandomrumber wrote: post #148

Earlier quoted context omitted.

> Not allowed This phrasing needs to die. Not allowed is something your parents imposed on you when you were a child. You’re not allowed to have an ice cream, or you’re not allowed to hang out with that boy. Laws don’t not allow anything, they only sometimes impose penalties if you’re caught breaking them.

> This phrasing needs to die. If we're being annoying about language for no valid reason, I would say that a "phrasing" cannot "die", because a "phrasing" is not a living creature. > Laws don’t not allow anything, they only sometimes impose penalties if you’re caught breaking them. How does it work with your parents? Do they cast a spell that prevents you from hanging out with that boy? Nobody was "allowed" to smoke,…

Fortunately for me, words are allowed to have more than one meaning.

die /dī/

intransitive verb

2. To cease existing, especially by degrees; fade.

Re: What your Bluetooth devices reveal

#176

Post by ale42 »

throwaway27448 wrote: post #170
Gigachad wrote: post #82

Earlier quoted context omitted.

It’s actually even easier, your car has a plate on the front with a unique ID that a camera scans, often to automatically track your park time for ticketing. I can’t really care about obscure Bluetooth tracking when every business has CCTV doing facial recognition.

The plate is pretty trivial to fake though. For one thing you can just remove it, but it's trivial to alter with just spray paint. Or using an outdated plate, or someone else's plate, etc. it's identifying sort of how an phone number is supposed to be identifying: nominal, but not secure and trivially abused for fraud

> The plate is pretty trivial to fake though.

Sure it is, but people can't realistically think to randomize their plate numbers to avoid tracking... IANAL but is it probably a criminal offense to do so.

Re: What your Bluetooth devices reveal

#177

Post by ale42 »

caseyohara wrote: post #173
Asmod4n wrote: post #171

Earlier quoted context omitted.

In Europe and the US all new vehicles now have a visible ID under their front window glass, it’s called a VIN. It’s even standardized where it must be.

Are there cameras that can actually read VINs on moving vehicles?

I'm pretty sure it should be possible if one really wants to do it. Think of a high-power IR flash and a high-res camera synchronized with the flash, with fixed focus on where the VIN would be passing. If the flash pulse is short but strong enough, it should be possible to read the VIN. Maybe some polarizing filters to remove glass reflections are needed.

Re: What your Bluetooth devices reveal

#178

Post by palata »

nandomrumber wrote: post #175
palata wrote: post #160

Earlier quoted context omitted.

> This phrasing needs to die. If we're being annoying about language for no valid reason, I would say that a "phrasing" cannot "die", because a "phrasing" is not a living creature. > Laws don’t not allow anything, they only sometimes impose penalties if you’re caught breaking them. How does it work with your parents? Do they cast a spell that prevents you from hanging out with that boy? Nobody was "allowed" to smoke,…

Fortunately for me, words are allowed to have more than one meaning. die /dī/ intransitive verb 2. To cease existing, especially by degrees; fade.

I explicitly said I was being annoying for no valid reason. If you want to justify something here, you should probably justify that you weren't annoying for no valid reason.

Does your dictionary say that "not allowed" is specific to parents and children?

Re: What your Bluetooth devices reveal

#179

Post by bell-cot »

Gigachad wrote: post #82
luma wrote: post #78

Earlier quoted context omitted.

You can do this for much cheaper - all four of your tires are broadcasting a unique ID to report tire pressure, the radio to pick it up is cheap (because cars), and TPMS has no facility to randomize or otherwise secure this.

It’s actually even easier, your car has a plate on the front with a unique ID that a camera scans, often to automatically track your park time for ticketing. I can’t really care about obscure Bluetooth tracking when every business has CCTV doing facial recognition.

A camera has quite a few failure modes (bad lighting, fog, dirty lens, obscured by plant growth, privacy laws, etc.) which a TPMS receiver & directional antenna don't.

Re: What your Bluetooth devices reveal

#180

Post by Footprint0521 »

farkanoid wrote: post #145

Somewhat related - I've been working on a design using Nordic's NRF52840 SOC for work; Intensely focusing for the past few weeks on antenna tuning for maximum BLE range. Part of the testing involves using the 'nRF Connect' app, which lists all nearby Bluetooth devices, plots signal strengths, and allows for some rudimentary communication. It doesn't seem to be Nordic-specific. I'd frequently leave the app open scanni…

Random question, but will this be open sourced at any point? Just asking as a curious party who just bought one for exploration lol

Also super random question but would you happen to have any idea/advice on how to get a Raytac MDBT50Q-CX Nordic nRF52840 Dongle (https://www.amazon.com/gp/product/B0DP6MVDZQ) flashed with ButteRFly (https://github.com/whad-team/butterfly)?

I got it flashed through nrfutil with sniffer and sweyntooth, but butterfly has not been working no matter what I try and do…

Thanks for even taking the time to read this :)

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