https://arstechnica.com/information-technology/2021/09/three-ios-0-days-revealed-by-researcher-frustrated-with-apples-bug-bounty/

Yesterday, a security researcher who goes by illusionofchaos dropped public notice of three zero-day vulnerabilities in Apple's iOS mobile operating system. The vulnerability disclosures are mixed in with the researcher's frustration with Apple's Security Bounty program, which illusionofchaos says chose to cover up an earlier-reported bug without giving them credit.