Adam Bell 
This is some legitimately impressive work. Really cool stuff https://security.apple.com/blog/memory-integrity-enforcement/
Memory Integrity Enforcement: A complete vision for memory safety in Apple devices - Apple Security Research
Memory Integrity Enforcement (MIE) is the culmination of an unprecedented design and engineering effort spanning half a decade that combines the unique strengths of Apple silicon hardware with our advanced operating system security to provide industry-first, always-on memory safety protection across our devices — without compromising our best-in-class device performance. We believe Memory Integrity Enforcement represents the most significant upgrade to memory safety in the history of consumer operating systems.
Jesús A. Álvarez
BasicAppleGuy
John Siracusa
Matt Massicotte