The Clever Cryptography Behind Apple’s ‘Find My’ Feature

Andy Greenberg, writing for Wired:

When Apple executive Craig Federighi described a new location-tracking feature for Apple devices at the company’s Worldwide Developer Conference keynote on Monday, it sounded — to the sufficiently paranoid, at least — like both a physical security innovation and a potential privacy disaster. But while security experts immediately wondered whether Find My would also offer a new opportunity to track unwitting users, Apple says it built the feature on a unique encryption system carefully designed to prevent exactly that sort of tracking — even by Apple itself.

Just a brilliant feature.

Friday, 7 June 2019