#osinternals — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #osinternals, aggregated by home.social.
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In part 2 of my macOS security internals series, I demystify System Integrity Protection (SIP), breaking down how the kernel enforces Apple-signed entitlements over POSIX root privileges, the mechanics of rootless.conf, and why the hardware always has the final veto.
Includes a small C program to audit your own CSR bitfield configuration.
Read the full deep dive here:
https://bytearchitect.io/macos-security/Apple-defences-SIP-and-APFS-(cont'd)/#macOS #infosec #cybersecurity #ReverseEngineering #XNU #AppleSecurity #Kernel #OSInternals #Rootless