Originally posted on TechCrunch:
Facebook today offered reporters a deep dive on how it handles privacy and previewed some upcoming changes. The company revealed it does 80 trillion privacy checks per day on the backend to make sure data isn’t wrongly exposed. It runs 4000 surveys about privacy per day which pushed it to now begin displaying on-screen descriptions of how privacy controls work, including for status update audience selectors and resharing.
Facebook used to have every team work on its own privacy functionality, and then would have dedicated teams for privacy sprints around specific privacy changes. But as the company grew, two specific privacy teams evolved. One is the Privacy Product Engineering team that builds the settings that let users control who sees their content. The other is the Privacy Infrastructure Engineering team, which “helps engineers move the fast and build things” while still being confident there will be no privacy breaches, says Privacy…
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