Mastodawn

Are you interested in bleeding-edge microarchitecture offensive security research, with a concrete impact on user security?
We have just opened a Microarchitecture Security Internship position at Apple, in SEAR LASER! ❤️‍🔥

Apply here: https://jobs.apple.com/en-us/details/200624069/microarchitecture-security-internship

Microarchitecture Security Internship - Jobs - Careers at Apple

Apply for a Microarchitecture Security Internship job at Apple. Read about the role and find out if it’s right for you.

Pietro Borrello Sep 10, 2025

Allison Husain Sep 9, 2025

Memory Integrity Enforcement is the culmination of a truly incredible amount of work :)

While there's so much to love, one of my favorite pieces was getting to bring kalloc_type-style isolation to out-of-bounds accesses on both the architectural and speculative path. This lets us both mitigate a variety of Spectre v1 style attacks and break the reliable exploitation of some of the most powerful first-order memory corruption primitives (arb offset OOB R/W).

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.

Memory Integrity Enforcement: A complete vision for memory safety in Apple devices - Apple Security Research

Pietro Borrello Nov 10, 2023