The Unix underpinnings, frameworks, and platform security model behind Apple's desktop OS.
A defensive architecture for macOS Endpoint Security clients covering entitlements, event deadlines, cache policy, muting, message lifetime, and telemetry.
An evidence-first Rosetta 2 repair workflow for Intel Mac apps covering architecture, integrity, plug-ins, translation availability, data, and vendor support.
A non-destructive Time Machine local-snapshot workflow covering APFS accounting, inventory, backup health, supported thinning, deletion, and verification.
A correct mental model for macOS FSEvents streams, path coalescing, event IDs, per-disk persistence, dropped-event flags, exclusions, and rescanning.
A safe macOS profile workflow covering payload identifiers, scope, signing, MDM delivery, conflicts, inspection, removal, rollback, and effective-state proof.
A privacy-conscious macOS unified-log workflow using process and subsystem predicates, levels, time bounds, signposts, collection, and reproducible evidence.
A surgical macOS system-extension diagnostic flow covering architecture, signing, entitlements, bundle identity, user or MDM approval, logs, and replacement.
A map of macOS Network Extension providers, supported use cases, entitlements, configuration ownership, packet flow, privacy, and lifecycle constraints.
A security-aware explanation of Rosetta 2 translation, ahead-of-time and just-in-time paths, code identity, mixed architectures, and compatibility limits.
How Secure Enclave-backed macOS keys combine Keychain references, access-control policy, signatures, device binding, error handling, and recovery design.