Re:Ask HN: What current companies have the best software eng...
by United857 on Wednesday January 04, 2017 @11:56AM
(#13319860)
Yeah, that's what I meant. In general, Whatsapp/Oculus/Instagram source code is accessible (at least read access).
For the most part, the exceptions are acquisitions (but those get integrated eventually, see above) or some third-party IP subject to obligations.
I'd imagine the exceptions are some small black boxes that try to catch abuse/spam/etc in various ways & places, or are closed off to prevent a code leak from exploiting a loophole in said software. Defense in depth, and all...