Install Norton Security

This is an installer bundle rather than a standalone application — updating or replacing it depends on the main Norton Security app itself. Norton Security has shipped a native Apple Silicon build for several years now, so if you have Norton installed on your Mac, you should have access to a native version. To verify your Norton installation and update to the native build if needed, open the main Norton Security application (usually found in Applications), go to Settings or Help, and use the built-in update mechanism to pull the latest native version for your Mac's architecture. If Norton Security is not installed or you are setting it up fresh, you can download the current installer from NortonLifeLock's official download page — modern installers automatically detect your Mac's processor and serve the appropriate native build. If you are still seeing the Intel version running under Rosetta, that is likely because the main Norton app has not been updated since you upgraded to Apple Silicon; checking for updates through Norton's own interface is the quickest way to switch to native.