this post was submitted on 14 Jun 2025
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Privacy

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Meta devised an ingenious system (“localhost tracking”) that bypassed Android’s sandbox protections to identify you while browsing on your mobile phone — even if you used a VPN, the browser’s incognito mode, and refused or deleted cookies in every session.

This is the process through which Meta (Facebook/Instagram) managed to link what you do in your browser (for example, visiting a news site or an online store) with your real identity (your Facebook or Instagram account), even if you never logged into your account through the browser or anything like that.

Meta accomplishes this through two invisible channels that exchange information:

(i) The Facebook or Instagram app running in the background on your phone, even when you’re not using it.

(ii) Meta’s tracking scripts (the now-pulled illegal brainchild uncovered last week), which operate inside your mobile web browser.

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[–] [email protected] 10 points 1 day ago (2 children)

Or you could just not use their toxic bullshit. I haven't logged into Facebook in like 6 years.

[–] [email protected] 12 points 21 hours ago (2 children)

Yeah, but they'll still create a shadow profile on you and track your data anyway. Have a friend with an account? Your name and phone number is known to them. Even without a true identity attached, they will track you from your own devices, and then correlate that with everything else they can at every opportunity.

Also, Facebook is preinstalled as a system app (cannot be uninstalled without adb) on various manufacturer's and carrier's android builds.

[–] [email protected] 1 points 15 hours ago

friend

Lmao, y'all have friends? 🤣💀

[–] [email protected] 2 points 21 hours ago

IIRC Facebook was not installed by default on my Samsung A32, and there is no trace of it now so I don't think I removed it. shrug Otherwise, use privacy features in your browser/on your device

[–] [email protected] 2 points 22 hours ago (1 children)

Be brave, do it. I just did it a few months ago. Just push the trigger and delete it. Let it go. They will of course keep the data, but at least not legally anymore.

[–] [email protected] 1 points 21 hours ago (2 children)

I haven't deleted it because there are a couple of people I might theoretically need to get in touch with at some point that I don't have contact with otherwise.

[–] [email protected] 1 points 19 hours ago

Fair enough.

I held on to this possibility for similar reasons for years, but after some honest self reflection I cannot say there would be anyone from my past life who is still important and I have no other means to contact, my Facebook bubble from 10 years ago and more is long dead, i.e. similarly inactive.

Maybe giving people an email address, phone number or username somewhere else via Facebook message before leaving for good could also be a solution.

[–] [email protected] 1 points 21 hours ago (1 children)

You can still use a browser for that occasion. Meanwhile the app is doing things in the background.

[–] [email protected] 1 points 18 hours ago

I haven't had the app installed since I got my phone. I don't believe it was installed by default, or if it was I removed it immediately.