Reply To: Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794667931)

Sequoia 15.1’s hardened runtime enforcement for IOPlatformPluginFamily (per SB-2024-003) now strictly validates Thunderbolt NHI firmware signatures during D3cold exit, causing panics if the dock’s PD controller firmware is outdated or if Safari’s Intelligent Tracking Prevention (ITP) database corruption triggers a kextd stall during snapshot mount. Check system_profiler SPThunderboltDataType for “Firmware Version” mismatches against the vendor’s latest binary and run sudo kextcache --clear-staging && sudo kextcache -i / to rebuild the prelinked kernel cache against the new trust cache. Temporarily disable Family Sharing’s com.apple.familynotificationd launch agent (launchctl bootout gui/$(id -u) com.apple.familynotificationd) to eliminate background keychain sync contention on the APFS snapshot.