All news with #memory tagging tag

Apple Adds Always-On Memory Integrity Enforcement Feature

🔒 Apple has introduced Memory Integrity Enforcement in the iPhone 17, a hardware-aware, always-on defense against memory-safety exploits used by spyware like Pegasus. Building on Arm’s MTE and its 2022 Enhanced Memory Tagging Extension, Apple’s implementation tags allocations with secrets and verifies them on every access. The company says the protection runs continuously without noticeable performance loss. Apple collaborated with Arm and tuned the chip-level design to make exploitation of memory-corruption bugs significantly harder while preserving compatibility with existing code.