Symantec Endpoint Protection Installations on Windows x64 Platforms How to update definitions for Symantec Endpoint Protection Manager using the .jdb file File Name Creation Date Release Date File Size Defs Version Sequence Number MD5 | all sef/20260624-001-SEF_IU_SEP_14.3_RU9_x64.jdb 06/24/2026 6/24/2026 13.29 MB B9DA1FC04DDB00687C68568728296AE9 This updater is suitable for the following versions of Symantec products: Symantec Endpoint Protection Manager 14.4 x64 Symantec Endpoint Protection Manager 14.3 RU10 x64 Symantec Endpoint Protection Manager 14.3 RU9 x64 ============================================================ Symantec Endpoint Protection Client Installations on Windows x64 Platforms Use the executable file for client installations only if you are using one of the supported products that are listed below. File Name Creation Date Release Date File Size Defs Version Sequence Number MD5 | all sef/20260624-001-SEF_IU_SEP_14.3_RU9_x64.exe 06/24/2026 6/24/2026 11.48 MB 74F331ABEC9587ECCB68E869E131118C This updater is suitable for the following versions of Symantec products: Symantec Endpoint Protection 14.4 x64 (Client only) Symantec Endpoint Protection 14.3 RU10 x64 (Client only) Symantec Endpoint Protection 14.3 RU9 x64 (Client only)