this post was submitted on 22 Mar 2025
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A new study reveals that thousands of Android apps covertly collect location data using Bluetooth and WiFi beacons, allowing continuous tracking and profiling of users without explicit consent.

top 24 comments
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[–] Squizzy@lemmy.world 5 points 9 hours ago

Google have always tracked you using wifi, their street views cars have been collecting and geotagging wifi signals for decades now. Hooray for them doing the bare minimum when someone else tries to I guess.

[–] FrameXX@discuss.tchncs.de 10 points 1 day ago (1 children)

AFAIK you have to give the app location access for it to be able to scan sourrounding networks and see the SSIDs (At least that's how it works on the newer Android versions circa around Android 10 or 9). For bluetooth you have to enable at least the nearby devices permission. If you do that then it makes sense that the app can track your location.

[–] roofuskit@lemmy.world 5 points 1 day ago

And Android specifically requests this permission as location sharing so that it is clear that if you give the app permission to scan Bluetooth and WiFi networks it will know your location.

[–] sp3tr4l@lemmy.zip 11 points 1 day ago* (last edited 22 hours ago) (1 children)

Did... did people not know this?

I mean, I guess this is a study of how widespread it is, but this shouldn't be news to anyone.

Apps have been doing this for about a decade, either more precisely determining your location when GPS location is on, by checking it against known stationary wifi and bluetooth things that come into range, or even just guessing your location with GPS off via the same thing.

Most people just blindly give every app every permission it asks for, just like most people don't read ToS.

You can either deny unnecessary permissions for each app, or just have wifi/location/bluetooth off if you're not actually using them, and/or keep reseting your 'advertising id'... or just run in airplane mode as a kind of 'do not disturb' mode.

Of course... if apps are actually circumventing those above methods of mitigation, permissions management etc, ... well then they are malware.

Apparently 19% of the apps use methods that are so explicit that they probably violate the Google Play Store's TOS, but 86% of them use methods that are basically allowed.

EDIT: Err, 86 - 19 = 67% use 'allowed' methods, a total of 86% use any method from their closed source, built in SDKs.

All malware imo, hooray for closed source proprietary software (the sdks built into the apps are closed source), you can totally trust them lol.

[–] LordKitsuna@lemmy.world 1 points 7 hours ago

You need to remember how Tech illiterate the vast majority of the market is. If someone gets a pop-up asking for an app to have permission that they aren't even going to read it so they're going to look for the allow buttons that they can continue trying to use their app.

They don't know or care what's happening and trying to explain it to them generally makes them tune out, no amount of more detailed permission message or anything is going to change that for anyone except people of higher Tech literacy which is the majority of what you're going to find here on lemmy

F-droid or bust

[–] Boomkop3@reddthat.com 6 points 1 day ago

That's not quite legal, but I don't think anyone is surprised

[–] base@lemmy.world 28 points 1 day ago (1 children)

and thats why i finally gave up two years ago and bought a pixel and installed grapheneOS. also i just dont use shitty apps anymore. its a good life

This is the way

[–] Ulrich@feddit.org 53 points 2 days ago (2 children)

They've been doing this for like, 10 years...

[–] Steve@communick.news 31 points 2 days ago* (last edited 2 days ago)

The Precise Location Permission description, specifically states that's what they're doing.

[–] sunzu2@thebrainbin.org 12 points 2 days ago

That's the main reason why both mobile platforms always trying to keep WiFi and BT on...

Good thing the normir got nothing to hide so it is not harming anyone

[–] marauding_gibberish142@lemmy.dbzer0.com 12 points 2 days ago (1 children)

If I don't give them permissions to use Bluetooth and cut off their access to WiFi (VPN based firewall), is this threat prevented or am I a fool?

[–] Ghoelian@lemmy.dbzer0.com 25 points 2 days ago* (last edited 2 days ago) (2 children)

The article states they cicumvemt androids privacy controls,, but doesn't say how. As far as I'm aware, WiFi access point scanning is behind the location permission and service for precisely this reason. So if you just deny that permission, you should be fine.

I wasn't able to use my WiFi ssid in home assistant automations without having location services enabled, for example.

[–] Sturgist@lemmy.ca 6 points 1 day ago (1 children)

I wasn't able to use my WiFi ssid in home assistant automations without having location services enabled, for example.

I was recently(6 months ago) gifted a very nice pair of Bang & Olufsen BT headphones. They come with a 3.5mm hardline as well...but since my phone, and basically everyone else's, no longer has a port for that....🀷
BT connection works amazing with both my laptops and my desktop. Zero issues. To use them with my android phone the B&O connection app has to be open, WiFi on, precise location approved. Because of my settings for precise location data not being available for apps in the background, the B&O app has to be focused. If WiFi is off, and precise location is denied the app refuses to connect to the headphones, despite my actual phone seeing and connecting to it with no issues. I'd just not use the app...but without the app there's (absolutely intentional) audio drops. I know it's on purpose because it happens in a pattern. 90 seconds of perfect audio, followed by four 2 seconds cuts 5 seconds apart, then another 90 seconds of perfect audio. So I just don't use them with my phone. πŸ–•

[–] Ghoelian@lemmy.dbzer0.com 3 points 1 day ago (1 children)

Damn, that's awful. Can't you just set the settings once, then delete the app and pair it like a normal Bluetooth device? Would imagine that should work, if it works with your laptop as well.

[–] Sturgist@lemmy.ca 3 points 1 day ago (1 children)

Nope. It only happens when connected to a mobile device. Tested it on all 3 of my android phones (current daily driver, back up phone, and an S4 that I use as a media player in my car,) my wife's iPhone X, my Samsung tablet, and my work iPad. The S4 doesn't have that behaviour, but isn't really a viable option. The battery is basically only good enough to keep it powered for an hour or two, and doesn't jive with my cell provider's SIM it's also running a Google free ROM... Both my more modern phones, my wife's, and the tablets have the exact same behaviour. When I got them I had no intention of even installing the app. Wasn't until I was trying to troubleshoot the audio drop out that I installed it. And through experimenting with permissions and services turned on and off decided to just not use them with my phone.
The settings provided by the B&O app aren't in userland for android, and as far as I've been able to find, can't be pulled up and implemented without the app.

[–] EngineerGaming@feddit.nl 2 points 11 hours ago* (last edited 11 hours ago) (1 children)

I wonder what happens if you deny the app internet access? The permission for it is separate from "nearby devices" or "location". Or use the firewall specifically for it?

Also yeah, the whole situation is messed up, never thought headphones could require an app :/

[–] Sturgist@lemmy.ca 2 points 11 hours ago (1 children)

That.......is something I'd not tried yet....hmmmm. I'll try it tonight and get back

[–] EngineerGaming@feddit.nl 2 points 9 hours ago (1 children)

I also wonder what connections it normally makes and how many)

[–] Sturgist@lemmy.ca 1 points 9 hours ago (1 children)

There an app I can run on android that'd log that?

[–] EngineerGaming@feddit.nl 2 points 8 hours ago* (last edited 8 hours ago) (1 children)

Rethink, for example. Also allows denying an app internet access, if your OS can't do it by itself.

[–] Sturgist@lemmy.ca 2 points 8 hours ago

It can, but I'd like to see what it's doing instead of just out and out blocking it. Still going to block it, just want to know who all it's calling home to.

In theory that shouldn't be possible unless the app runs as root. Although I'm sure somebody out there has a zero day for it. Yeah I don't know, I don't give any application permission to use location services, and the ones like maps I set it to "Ask me every time". I hope that's good enough for now