Hasty Briefsbeta

A16-FuseBypass: Debug Logic Enabled on Production Apple Silicon

11 days ago
  • #hardware-vulnerability
  • #security-research
  • #Apple-A16
  • Critical hardware-level vulnerability in Apple A16 Bionic chip used in iPhone 14 Pro Max.
  • Debug logic meant for development silicon can be executed on production-fused devices without any modifications.
  • Flaw involves SecureROM, firmware, HAL, and co-processors executing debug routines despite production configuration.
  • Implications include expanded attack surface, leakage of privileged telemetry, and potential exploitation by advanced threats.
  • Confirmed on multiple unmodified devices running official iOS firmware.
  • Repository includes logs, analysis, and steps to reproduce the issue.
  • Undermines foundational assumptions of Apple’s hardware trust model.