If the thousands of security and privacy experts who’ve raised an outcry on social media over the past few days — and signed at least one letter calling for change — are correct, then Apple is about to make a staggeringly awful miscalculation. More specifically, they’re warning that a new feature set baked into the company’s software in the name of cracking down on one very specific, very horrible act (using iPhones in the service of child exploitation) will actually open the door to the very dystopian privacy nightmare that Apple’s own leaders have warned about for years.