Can this cross profiles? That would be a big security issue for corps. Quick test and if I serve on 8080 on the Userland app it can be accessed from both profiles. So probably yes. This means an infected app on your personal profile could exchange data with a site visited from a second profile.
Covert web-to-app tracking via localhost on Android
111–120 of 356 posts
Re: Covert web-to-app tracking via localhost on Android
#112"UPDATE: As of June 3rd 7:45 CEST, Meta/Facebook Pixel script is no longer sending any packets or requests to localhost. The code responsible for sending the _fbp cookie has been almost completely removed." I'm surprised they're allowed to listen on UDP ports, IIRC this requires special permissions? > The Meta (Facebook) Pixel JavaScript, when loaded in an Android mobile web browser, transmits the first-party _fbp co…
Nothing quite like an instant panicked coverup to confirm guilt and intent. Hopefully not too late to make it into the lawsuit. Assholes.
Re: Covert web-to-app tracking via localhost on Android
#113Earlier quoted context omitted.
By defining the $thing, banning the $thing per definition by law, and then tasking FBI-like organization enforce the law? It won't completely go away but it will subside, like how gambling on Internet is divided binary and confined into lootbox games without cashing features and straight up scam underground casinos. Personally I think we should start from separating good old ads(that existed before I was 15) and Inte…
I mean the comparison of ‘old’ ads vs new ads is interesting in itself, old ads already abide by far more regulation and are far more auditable. Simply bringing digital ads in line would be a big step forward. Some examples: In most countries it’s illegal to ‘target minors’ and there’s restrictions on what ads can run on after school hours. Meta has always allowed age targeting down to 13 and has no time of day restr…
Better moderation of crappy AI-generated image ads that are just scamming you would be nice as well.
Re: Covert web-to-app tracking via localhost on Android
#114Can you imagine the mental hoops you’d need to jump through as a developer to persuade yourself that this is a valid thing to implement?
Re: Covert web-to-app tracking via localhost on Android
#115Earlier quoted context omitted.
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Imagine a website not being a trojan horse, but directly serving non-targeted advertising to users at the same level as their content. They could target it by tailoring it to content they're serving, just like I'd be ok with seeing an ad for a new car when I'm on a page reading about the properties of a given combustion engine.
Re: Covert web-to-app tracking via localhost on Android
#116This is the overall process used by Meta as I understand it, taken from https://localmess.github.io/ : 1. User logged into FB or IG app. The app runs in background, and listens for incoming traffic on specific ports. 2. User visits website on the phone's browser, say something-embarassing.com, which happens to have a Meta Pixel embedded. From the article, Meta Pixel is embedded on over 5.8 million websites. Even in I…
Depending on the country that you or your family lives in, this could be far worse than embarrassment.
Re: Covert web-to-app tracking via localhost on Android
#117Not only our their websites painful which discourages use, websites are more sandboxed.
Re: Covert web-to-app tracking via localhost on Android
#118"UPDATE: As of June 3rd 7:45 CEST, Meta/Facebook Pixel script is no longer sending any packets or requests to localhost. The code responsible for sending the _fbp cookie has been almost completely removed." I'm surprised they're allowed to listen on UDP ports, IIRC this requires special permissions? > The Meta (Facebook) Pixel JavaScript, when loaded in an Android mobile web browser, transmits the first-party _fbp co…
These companies have demonstrated repeatedly that fines are just the cost of doing business. Doesn't matter if you charge them $1 million or $1 billion. They have still made significantly more than that from the crime.
Re: Covert web-to-app tracking via localhost on Android
#119"UPDATE: As of June 3rd 7:45 CEST, Meta/Facebook Pixel script is no longer sending any packets or requests to localhost. The code responsible for sending the _fbp cookie has been almost completely removed." I'm surprised they're allowed to listen on UDP ports, IIRC this requires special permissions? > The Meta (Facebook) Pixel JavaScript, when loaded in an Android mobile web browser, transmits the first-party _fbp co…
> The Meta (Facebook) Pixel JavaScript, when loaded in an Android mobile web browser, transmits the first-party _fbp cookie using WebRTC to UDP ports 12580–12585 to any app on the device that is listening on those ports. And people on HN dismiss those who choose to browse with Javascript disabled. There's a reason that the Javascript toggle is listed under the Security tab on Safari.
Re: Covert web-to-app tracking via localhost on Android
#120No response from Google. Being used by dozens of apps in the wild.
Edit: Original Research link: https://peabee.substack.com/p/everyone-knows-what-apps-you-u... (HN: https://news.ycombinator.com/item?id=43518866 , 482 comments)