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Posted by bookofjoe 9/4/2025

WiFi signals can measure heart rate(news.ucsc.edu)
467 points | 262 commentspage 4
luxuryballs 9/4/2025|
there’s always a cost to the organ being read, will this one day become a way to monitor a crowd for individuals of suspicious activity? scary tech, eventually along this technological trajectory the computer effectively reads your mind by combining biometrics with user profile data and large models, even though it will just be a prediction, a very informed prediction
toomuchtodo 9/2/2025||
This would be great to be able to log and monitor heart rate data while sleeping without needing to wear a wearable.
fjfaase 9/2/2025|
There are already radar devices, such as mmWave, that can do this. Instruction videos can be found on youtube.
teeray 9/4/2025||
New polygraph just dropped.
RandomBacon 9/4/2025|
I'm guessing with a polygraph: the obvious, cumbersome equipment is to make the subject uncomfortable and aware of the measuring, to make them more likely to break, or have a harder time controlling their body.
jcmontx 9/4/2025||
Bros at UCSC must be getting some good grants from the US military. I can already imagine the next gen of public-wifi driven drone strikes
transpute 9/4/2025||
WiFi Sensing shipped in Comcast routers, Intel laptops and Qualcomm phones, https://news.ycombinator.com/item?id=44426726#44427986
munk-a 9/4/2025||
It's an excellent time to buy your own device for wifi broadcasting and disable any ISP provided broadcasting (or maybe put it in a faraday cage?) - it's relatively simple to set up with off the shelf components though less technically minded people may struggle with it. There's still a pretty robust market of options and the devices have gotten pretty feature rich with things like mesh networking support being pretty standard.
bookofjoe 9/4/2025||
>though less technically minded people may struggle with it

This is the funniest thing I've read so far today. BOTN

munk-a 9/4/2025||
I more meant - you might need to help elderly relatively set it up. There are plenty of wifi routers you can order that basically just plug in out of the box - the bigger issue is educating people that they need the tech and then making sure they can handle the cable connections. I tend to work with some very non-technically minded people so my bar is so so low.
bookofjoe 9/4/2025||
Oh! I wish you lived near Charlottesville, Virginia, where I live. I am a 77-year-old retired neurosurgical anesthesiologist. My technical aptitude is SO low that I dare not exchange my obsolete 10-year-old Comcast WiFi router for the current model that I can "basically just plug in out of the box," even though it's billed as being at least 5x faster than mine, because I don't believe their constant emails that the new one they'll send me is simple to set up. Far more likely than not I'll end up with NO WiFi and have to pay for a technician to come and do it.
immibis 9/4/2025|||
I guess that means Germany did nothing wrong (when it banned public WiFi).
barbazoo 9/4/2025|||
Isn't it the other way around? Germany actually has it made easier to operate a public wifi by limiting the liability on the side of the wifi provider with their mid 2010s legislation.
immibis 9/4/2025||
Famously it was illegal to operate public wifi in Germany until 2017.
barbazoo 9/5/2025||
Was it really illegal or was it that as the operator of the Wifi you could be held liable. There's a difference.
tessierashpool 9/4/2025|||
seeing a theme here

https://news.ycombinator.com/item?id=45121617

dingnuts 9/4/2025||
with this level of accuracy and that sword missile with no warhead they can drone strike you in a cafe with disturbing the other patrons
cyanydeez 9/4/2025|||
Guys, they can just ask social media Corp A where you are. They don't need no fancy tech here.
dmbche 9/4/2025||
Not even, your SIM in constantly pinging multiple towers and triangulating you
cyanydeez 9/4/2025||
slight quibble: That triangulates your phone. Social media (unless you're letting LLMs talk for your) is triangulating _you_.
dmbche 9/4/2025||
I'm not certain of the distinction nor that the platforms are triangulating me and not my phone. Especially if you don't directly provide information about what you're doing.

And that 99% or social media users have their phone on them at all times.

cyanydeez 9/4/2025||
If you're trying to targe tsomeone with a deadly strike, just knowing their phone is in a location is not comparable to knowing they just posted something on social media.

Sure, you can attribute a good chance of success to the movement of the phone equating a strike on the person, but it's still _just a phone_ that you're triangulating.

dmbche 9/4/2025||
I find it unlikely that people a government would want to kill by drone strike would be posting about their wherabouts on social media and at the same time obfuscating their location by having their phone move without them (by someone ok with being hit by a drone strike?).

Or we're speaking about striking civilians posting on social media - where I'm not sure drone strikes are very cost effective or pertinent.

My understanding is that drone strikes aren't a thing done because you just got a hit on social media of a precise location, but more of a somewhat long investigation into the activity and identity of the target, their habits and movements (both to confirm their value and maximise sucess) - and then a calculated drone strike that both maximizes sucess and minimizes collateral.

Of course Israel does not do this and is more into the "paint a bullseye around the victim" kind of doctrine, but that's outside the scope of this discussion.

MomsAVoxell 9/5/2025|||
Just think about it, folks.

We are now in an era where we all need to learn how to regulate and modulate our own heartbeats.

Will we at some point have any rights over our biorhythmic signatures?

If not, then I will have to learn how to apply a modulation to my own internal oscillations, such that the algorithm is gonna have to use quantum power to decrypt how I'm feeling.

zx8080 9/5/2025||
What else can it measure?

Voice recording should not be an issue?

az226 9/5/2025||
They did this at MIT like 12 years ago.
wedn3sday 9/4/2025||
Thanks, now I need to build a faraday cage around my chest to stop the CIA from polygraphing me at range.
pax 9/4/2025|
I searched directly for Faraday through the comments. Waiting forward for the apparel company that builds this.

And we've been laughing all this time at tinfoil hat types..

MomsAVoxell 9/4/2025||
Find your target by heartbeat. Fly to heartbeat. End heartbeat.

Wake me up when it can find me in the crowd.

musbemus 9/4/2025|
Someone point this at Trump and report back
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