← Back to PeopleJMResearcherJosh MaineSecurity Researcher at CalifBuilt tooling for the macOS M5 kernel memory corruption exploit, completed by May 1.1Mentions1Articles1OutletsCompanies CoveredAnthropic1Apple1Calif1ArticlesMost recent firstMentioned InReferenced in coverageCalif Security Team Uses Anthropic Mythos Preview to Build First Public macOS M5 Kernel Exploit in Five Days, Bypassing Memory Integrity Enforcement9to5MaccautiousMay 16, 2026“Built tooling for the macOS M5 kernel memory corruption exploit, completed by May 1.”