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How does viewing the code give you confidence that the app is running the code you saw?

• beisner 9y ago
  You can pretty easily compare compiled binaries.
  • philo23 9y ago
    That's assuming you can replicate their build process exactly and that process produces perfectly reproducible builds.
    • Sir_Cmpwn 9y ago
      Or you could just run the code you compiled yourself?
  • 542458 9y ago
    Can you? I was under the impression that perfectly reproducible builds were still very much a hard and open problem. Furthermore, I believe that the Facebook app codebase is massive in scope and highly illegible due to most of it being auto-generated from other codebases. It has over 18,000 classes on iOS. The odds of anybody being able to meaningfully audit that are pretty low.