Neither Symantec Endpoint Protection nor the Mac operating system continue to remind you that you must do this. If you do not do it during the client installation, go to System Preferences > Security & Privacy, and click Allow. You are prompted during the client installation to do it if needed.
#Mac os high sierra compatibility list mac os x#
Mac clients for Symantec Endpoint Protection Cloud do not support Mac OS X 10.11 (El Capitan).
#Mac os high sierra compatibility list for mac#
See Remove Symantec software for Mac using RemoveSymantecMacFiles.
Case-sensitive APFS volumes are not supported.
PowerPC processors are not supported as of version 12.1.x.Neither Apple or Symantec support macOS 10.13.x or older.Apple M1 (M1 Pro/M1 Max) is only supported by SEP 14.3 RU2 and later.The 14.3 RU4 installer ships with the 14.3 RU3 Mac client. The SES Mac client is only supported on macOS 10.15.x and 11.x with the SES Mac agent build 14.3 RU1 and newer.The Symantec Endpoint Security (SES) client for Mac is cloud-based and managed by the Integrated Cyber Defense Manager (ICDM) web page.The SEP client for Mac is managed by a Symantec Endpoint Protection Manager (SEPM) on a Windows server.Note: Different product versions have specific system requirements. SEP 14.x Client for macOS/OS X Compatibility Chart