A bug, an Apple and a $100,000 payout

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Editor's note: Bhavuk Jain, mid-eyeroll, pouts and balances a white ball point pen between the nose and mouth. He has a lush monobrow, thick jaw and a tuft of chest hair peeking out from under his black T-shirt. Jain’s idling pose makes him seem puckish. But that’s his WhatsApp display picture. He’s an antonym of that self over a phone call, mannerly and dispassionate even, especially for someone who just received $100,000 for helping Apple save face. His manner is disengaging, but his story isn’t. It’s a tale about rash oversight by the world’s most valuable brand, and also a story about a community he’s part of—one that does great good by keeping tech on its toes. On April 9, 2020, Jain, an ethical hacker and iOS developer, got a notification from Apple that made him raise a brow. Please note that all apps that authenticate or set up user accounts must support Sign in with Apple if required by guideline 4.8 of the App Store Review Guidelines. New apps must follow guideline 4.8 and Human Interface Guidelines on Sign in with …