Is Apple’s New Privacy Feature Safe?

Today Apple announced a host of new features for iOS, including more predictive software like QuickType and advanced spotlight search. In order to make these features work, Apple’s deep learning robots will need to analyze a lot of people’s data at once, so Apple announced the integration of a new feature called differential privacy. But a cryptography expert isn’t sure the experimental technique is ready for primetime. “One of the important tools in making software more intelligent is to spot patterns on how multiple users are using their devices,” Apple’s Craig Fedrighi said at the WWDC 2016 keynote. “Differential privacy is a research topic in the area of statistics and data analytics that uses hashing, subsampling, and noise injection to enable this kind of crowdsourced learning while keeping the information…


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