Skip to content

Comment on Facebook scans system libraries on Android and uploads them to their serverparent

Comments

It's not metadata, is IS the binaries.

I'm pretty sure you can fingerprint a device by gathering data about the binaries (and versions thereof) installed on it. I'm pretty sure that Facebook also know whose instance of the FB app is running on the device in question. Ergo, the data can be deanonymized and gives them more insights into what their users are doing … including, oh, competing platforms and apps?

The traditional model of computer security assumes that there's one device (the computer) which may have multiple users, so the emphasis is on identifying the user to the device. But today, one user may have one or more computers (smartphones/tablets/laptops), so the emphasis is on linking devices to users and thereby tracking usage patterns across devices. Which lands it straight in GDPR territory.

I'm pretty sure you can fingerprint a device by gathering data about the binaries

Actually, probably not. These libraries are the base system image, which is read-only, and typically will only identify which model of phone it is. It might identify you if you have a custom android build you've done yourself though.

Shit, there are dozens of us. Dozens

No I meant they're outright uploading binaries, not just metadata.

AboutSource Built by g1lg1l

Hackerly is an independent reader for Hacker News, built on the public HN API. Not affiliated with Y Combinator.