Zimperium Analysis of checkm8

Can you explain what checkm8 is?  On Friday, September 27th 2019, a security researcher known as @axi0mX publicly disclosed a vulnerability together with a working exploit called checkm8 (read “checkmate”). This permanent and unpatchable exploit leverages a vulnerability in Apple’s bootrom (read-only code; SecureROM), the initial and critical part in the secure boot chain. Every … Read More