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submitted 1 week ago* (last edited 1 week ago) by bignose@programming.dev to c/technology@lemmy.world

The Sapienza computer scientists say Wi-Fi signals offer superior surveillance potential compared to cameras because they're not affected by light conditions, can penetrate walls and other obstacles, and they're more privacy-preserving than visual images.

[…] The Rome-based researchers who proposed WhoFi claim their technique makes accurate matches on the public NTU-Fi dataset up to 95.5 percent of the time when the deep neural network uses the transformer encoding architecture.

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[-] besselj@lemmy.ca 58 points 1 week ago

Ironically, a tin foil hat would probably work to prevent that kind of surveillance

[-] pelespirit@sh.itjust.works 19 points 1 week ago

A faraday hat.

[-] hornedfiend@sopuli.xyz 9 points 1 week ago* (last edited 1 week ago)

wouldn’t that make it worse? basically any signal can bounce off you, making yourself even easier to track.

edit: wording

[-] besselj@lemmy.ca 10 points 1 week ago

The tracking happens even with a big reflector/scatterer on your head, but as long as you dont wear it regularly, the system would have difficulty identifying you from wave propagation alone

[-] Flagstaff@programming.dev 5 points 1 week ago

So wear many different hats. Got it.

[-] DasFaultier@sh.itjust.works 1 points 1 week ago

I mean, wouldn't you anyway? You don't wear your good Sunday tinfoil hat to work. That one's for church and swinger club visits only!

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[-] TheBat@lemmy.world 37 points 1 week ago

Chuck vindicated. What a chicanery.

[-] eleitl@lemmy.zip 1 points 1 week ago

That's a very unique fingerprint he's got.

[-] TonyTonyChopper@mander.xyz 2 points 1 week ago

"Hey boss come look. This microwave is walking around again"

[-] hisao@ani.social 35 points 1 week ago

I've seen some article recently that the patterns of Wi-Fi/Bluetooth (don't remember which one) interference with brainwaves can be scanned to reconstruct brainwave signature remotely, meaning that it might be possible to scan anyone's EEG from Wi-Fi/Bluetooth distance. And there are some AI advancements for reconstructing inner monologue from EEG. So maybe we're not so far from actual remote mind-reading.

[-] jmill@lemmy.zip 38 points 1 week ago

A truly horrifying prospect.

[-] pdxfed@lemmy.world 15 points 1 week ago
[-] TheBat@lemmy.world 3 points 1 week ago
[-] isVeryLoud@lemmy.ca 2 points 1 week ago* (last edited 1 week ago)

No! This is Patrick!

Time for tin foil hats

[-] Diplomjodler3@lemmy.world 1 points 1 week ago

You had non work related thoughts on three separate occasions last week. Please report to HR for attitude adjustment.

[-] unmagical@lemmy.ml 30 points 1 week ago

I'm generally pro research, but occasionally I come across a body of research and wish I could just shut down what they're doing and rewind the clock to before that started.

There is no benefit of this for the common person. There is no end user need or product for being able to identify individuals based on their interactions with WiFi signals. The only people that benefit from this are large corporations and governments and that's from them turning it on you.

Continued research will ease widespread surveillance and mass tracking. That's not a good thing.

[-] artyom@piefed.social 23 points 1 week ago

they're more privacy-preserving than visual images.

hhhhwat. How can they identify you and also be privacy preserving? 🤔

[-] sorter_plainview@lemmy.today 11 points 1 week ago

It's all AI. You should not worry about it. In fact you should not think about it. All is going to be fine.

[-] LillyPip@lemmy.ca 18 points 1 week ago

Neat. Good luck protecting yourself from this.

On the other hand, I’m seriously considering opening an Etsy shop selling foil-lined clothes. I’m pretty good at sewing. What do you think?

[-] svc@lemmy.frozeninferno.xyz 3 points 1 week ago

Then I'll look for the person with the fingerprint of foil-lined clothes

[-] Zer0_F0x@lemmy.world 4 points 1 week ago

Not if everyone buys it, because then we'd all look the same

[-] NaibofTabr@infosec.pub 1 points 1 week ago

I think you will be the one guy in the crowd wearing foil-lined clothes.

[-] MysteriousSophon21@lemmy.world 1 points 1 week ago

You'd need fabric with continuous metallic threads that form a complete mesh to actually block the 2.4/5GHz signals - most DIY foil approaches leave gaps that WiFi can still penetrate thru.

[-] LillyPip@lemmy.ca 2 points 1 week ago

I feel like you’re overthinking this. These are people who buy crystal-infused drinking cups to reset their personal feng shui. (Spoiler: it’s just glitter.)

I really wish I didn’t have morals. It’s so easy to make money if you’re willing to fleece people.

[-] ileftreddit@piefed.social 11 points 1 week ago

Why would someone research something like this? God damn, like use your life for good, homie

[-] StenSaksTapir@feddit.dk 7 points 1 week ago

Well I heard about this and thought "this will be great for home automation", but I also know that someone was equally excited about using this to rob people of basic freedoms or being a fucking creep or both.

[-] gcheliotis@lemmy.world 3 points 1 week ago

I can imagine this being initially an accidental discovery like oh every time so and so’s body interacts with the WiFi signal it’s the same pattern… until someone starts exploring this further… and then some engineer or their manager started looking for applications for this. In my experience engineering researchers especially are very good with coming up with use cases for whatever tech they’re working with, with little ethical consideration.

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[-] Seleni@lemmy.world 8 points 1 week ago* (last edited 1 week ago)

accurate matches up to 95.5% of the time

and they’re more privacy-preserving than visual images

Oh fuck all the way off.

[-] D_C@sh.itjust.works 1 points 1 week ago

When anyone or anything says that their product works "up to x%" I always presume it doesn't really work at all.
Christ, 1% is included in that "up to 95.5%" vague bullshit statement.

[-] PattyMcB@lemmy.world 6 points 1 week ago

So, you're saying the tin foil hat people were right all along?!

[-] Telorand@reddthat.com 5 points 1 week ago

Ironically, they're still wrong, because even in their wildest conspiracies, they didn't imagine Wi-Fi could be used to "take pictures" of a sort.

[-] ObviouslyNotBanana@piefed.world 5 points 1 week ago

Great, another dystopian way for authorities to observe me on the shitter

[-] INHALE_VEGETABLES@aussie.zone 2 points 1 week ago

Your poo time has expired and your pay is docked. Flushing will cost 50 dollars for the next week. Get back to work

[-] Diplomjodler3@lemmy.world 3 points 1 week ago

You get poo time? That's socialism!

All time is poo time when you're close to the boss's desk

[-] SGG@lemmy.world 1 points 1 week ago

Please drink a verification laxative?

[-] Sabata11792@ani.social 2 points 1 week ago

Incorrect bio-signature detected, drink verification can to continue your content.

[-] ayane@lemmy.vg 2 points 1 week ago

Legendary reference

[-] nutsack@lemmy.dbzer0.com 1 points 1 week ago

you can also take a picture of a person with a camera that senses light beams

[-] whotookkarl@lemmy.dbzer0.com 1 points 1 week ago

Stilsuits: get it for the unbearable heat as we turn the Earth into a desert, now with wifi blocking!

[-] modus@lemmy.world 1 points 1 week ago

Time to carry a WiFi jammer

[-] Glitterbomb@lemmy.world 1 points 1 week ago
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this post was submitted on 25 Jul 2025
130 points (97.1% liked)

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