via @wongmjane

Facebook scans system libraries from their Android app user’s phone in the background and uploads them to their server
This is called "Global Library Collector" at Facebook, known as "GLC" in app’s code
It periodically uploads metadata of system libraries to the server

There doesn’t seem to be an opt-out option for Facebook Global Library Collector, nor does it not seem to be possible to view what they have >uploaded from our devices

Not sure what’s the purpose of GLC, but I guess it can be used for determining system integrity, compatibility

When I came across this, the optimist in me thinks this is an unorthodox way to gather data for debugging, optimizations, sec, etc

Somewhere in my mind thinks this is a little off

Thank you for pointing out the aspects I didn't think of before! This is certainly a can of worm..

If GLC is created to help to make the app runs better, I think an engineering blog explaining GLC, or other ways to transparently elaborate what Facebook app can collect could clear up some speculations :)

Even better, it will be reassuring to provide an opt-out option from GLC

Pas vu de confirmation, une seule source pour le moment.