this post was submitted on 24 Oct 2024
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[–] Drunemeton@lemmy.world 76 points 1 day ago (2 children)

One thing I am always aware of are apps that want permission to access Bluetooth and/or Wi-Fi and/or Networks.

Even though Bluetooth is very short ranged it can still be used to tie you into a location within a database based on other database records that are more detailed.

Yeah, I love playing you “My Great Dog-sitting Simulator” (not a real app) but you do not need access to my BT. The OS handles sending your audio to my headphones!

[–] asbestos@lemmy.world 32 points 1 day ago (1 children)

Teams is the worst, you can’t join any call if you don’t allow it to scan your local network. I wish the executives a very nice and agonizing death.

[–] toynbee@lemmy.world 16 points 23 hours ago (1 children)

I haven't done an extensive survey or anything, but every modern router I've interacted with supports setting up a secondary WiFi network with guest isolation (so anything on that SSID can't see any network device besides the router and itself). This is useful for apps or hardware that is untrusted and/or demands unjustified permissions.

[–] asbestos@lemmy.world 5 points 19 hours ago* (last edited 19 hours ago) (1 children)

Correct, using the guest network is better but I think turning off WiFi and just using mobile data is sufficient. I wonder if the permission applies to cellular connectivity as well.

[–] toynbee@lemmy.world 3 points 19 hours ago

Sure, removing your network from the equation is definitely a more secure option; just make sure the app isn't using those granted permissions in the background when you're done using it and log back into your network.

[–] toynbee@lemmy.world 12 points 23 hours ago (2 children)

I remember when Bluetooth started demanding location permissions. You'll never convince me that it's functionally required or provides any benefit other than furthering efforts to spy on the user.

When it started being rolled out, I avoided any app or hardware that made that demand. Sadly, that's no longer an option if I want any Bluetooth at all.

[–] scrion@lemmy.world 18 points 22 hours ago* (last edited 22 hours ago) (1 children)

It's not like Bluetooth started demanding location permissions, the conceptual model of the permission was revised: having access Bluetooth means an app could determine your location via a form of lateration.

In earlier versions of smartphone operating systems, this was not transparent to users lacking the technical background, so Bluetooth also requiring location access is actually an attempt at making users aware of that. I'm not an iOS developer, so I can't comment on iPhones, but on Android versions prior to 11, having access to Bluetooth meant an app would be able to determine your location.

Today, you can require the permission ACCESS_FINE_LOCATION, which expresses that your app might use Bluetooth to obtain location information on Android. Also, if you're just scanning for nearby devices to connect your app to, but don't want users to be confused why your smart fridge app needs to know your precise location, you can declare a permission flag (neverForLocation) and Android will strip beacon information from the scan results, better asserting your intentions.

So, overall: no, there is nothing nefarious going on, it was always possible to determine your location via Bluetooth, and the update to the permission model was an honest improvement that actually benefits you as user.

Now, there are still plenty of shady apps around, and apps that are poorly written - don't use those.

[–] toynbee@lemmy.world 4 points 22 hours ago (1 children)

I knew that someone would try to convince me. You won't convince me.

... Though your argument is pretty compelling.

[–] llii@discuss.tchncs.de 8 points 21 hours ago

I don't think he wanted to convince you, he just explained the backgroundon how you can track locations with bluetooth.

[–] helenslunch@feddit.nl 1 points 17 hours ago (1 children)

Whaaat? I definitely use Bluetooth without location services, and always have?

[–] toynbee@lemmy.world 1 points 15 hours ago

I believe it's only required during the pairing process, but as the other observer pointed out, I don't know much about it. If you're able to circumvent the process, more power to you!