Security research firm Calif says it used Mythos to help build a macOS kernel memory corruption exploit circumventing Apple's Memory Integrity Enforcement tech

Security research firm Calif claims it leveraged a tool called Mythos to construct a macOS kernel memory corruption exploit that bypasses Apple's Memory Integrity Enforcement technology. The findings were reported by the Wall Street Journal.

During tests conducted in April, researchers uncovered software vulnerabilities in macOS — widely considered one of the hardest targets for hackers to crack. The exploit specifically targets kernel-level memory protections, which sit at the core of Apple's security architecture.

The disclosure is significant because macOS kernel exploits are exceptionally rare and valuable. Apple has invested heavily in memory integrity safeguards to prevent exactly this type of attack.

Details on what Mythos is and how exactly it assisted in building the exploit remain limited. Calif has not publicly elaborated beyond confirming the tool's role in the research process.