com.symantec.kexthelper.MES
The MES kernel extension helper is a system-level daemon component of Norton Security (formerly Norton AntiVirus), Symantec's comprehensive antivirus and security suite for macOS. This helper process manages kernel extension functionality that powers Norton's real-time file scanning, threat detection and protection systems. It runs in the background as a privileged service and is not separately configurable by users — it is updated as part of the parent Norton Security application.
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1 suggestionThis is a helper component of Norton Security and cannot be updated on its own. To ensure it runs natively on Apple Silicon, you must update Norton Security itself to the latest version. Open Norton Security, go to Settings → Help & Support → Check for Updates, and install the latest available build. Symantec has shipped native Apple Silicon support in recent Norton Security releases, so updating will automatically replace the Intel-only daemon with the native version. If Norton Security is not currently installed, download the latest version directly from Symantec's website or use your existing installer — be sure to run the most recent version available, as older Intel-only builds of Norton will not have Apple Silicon support for this daemon.
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