I want to preface this by saying that yes, I know that Instagram is bad. I am planning to get rid of it in the future but as of now I have to keep it for communication with people who are only on that platform.
So I have grapheneOS, use protonvpn (free version), use mull as my browser, and do not have google play services enabled on my phone. I do have some apps downloaded through aurora store such as Instagram, whatsapp, mychart, and mint mobile, but the rest came from f-droid.
I have noticed multiple times that after having private conversations on matrix, I get Instagram content in my feed that is scarily accurate to the conversation I had on the other platform immediately after. I know that things discussed in Instagram direct messages and group chat will give suggested content based on those conversations, but I get stuff that that is very specific to what I have ONLY discussed on matrix and didn’t look up via my browser.
So my question is how is Instagram doing this and what can I do to mitigate the spying it’s doing on my other apps. Thanks.
I don’t think Instagram can read your Matrix conversations, but may be able to predict your interests with fancy algorithms or buying information from data brokers, even if it’s related to things you did on another device.
If you want to be more sure it’s not spying on your phone, uninstall the app and use it through your web browser.
I might just have to do this, although having a VPN and accessing it on desktop might flag my account and/or lock it. Would having Instagram on my old phone and taking it off my current one help?
Phones also have web browsers, and Instagram is usable that way (several years ago, it was not). It is possible that privacy protections will look like automated behaviors to their systems.
Using an app on a device that’s used for little else and has minimal data stored and apps installed on it also limits the potential for data leaks, though probably not as effectively as the browser, particularly when your browser is Mull.