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/20260430-008-SEF_IU_SEP_14.3_RU8_x64.jdb	04/30/2026	4/30/2026	13.1 MB			8DB45200FC49522BE08CFADCBF083E52
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU8 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/20260430-008-SEF_IU_SEP_14.3_RU8_x64.exe	04/30/2026	4/30/2026	11.36 MB			ED3DFD6779C9D5FA690E7DB21B3229B7
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection 14.3 RU8 x64 (Client only)
============================================================

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/20260430-007-SEF_IU_SEP_14.3_RU7_x64.jdb	04/30/2026	4/30/2026	13.07 MB			936E22755D5F2D78AC44893A5DFCE220
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU7 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/20260430-007-SEF_IU_SEP_14.3_RU7_x64.exe	04/30/2026	4/30/2026	11.31 MB			0E573429C3AC193D0D90F7F4B3AF98C4
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection 14.3 RU1 to RU7 x64 (Client only)
============================================================

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/20260430-007-SEF_IU_SEP_14.3_RU6_x64.jdb	04/30/2026	4/30/2026	13.07 MB			0FC1C0D08D0A0F85D3F8A3A16C0BE449
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU6 x64
============================================================

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/20260430-007-SEF_IU_SEP_14.3_RU5_x64.jdb	04/30/2026	4/30/2026	13.07 MB			A2C8F15897F1B2287B69C2E798A4ED33
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU5 x64
============================================================

Symantec Endpoint Protection Installations on Windows x86 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/20260430-006-SEF_IU_SEP_14.3_RU5_x86.jdb	04/30/2026	4/30/2026	10.0 MB			8992971CA2A0AF1F2CD7378166103553
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU5 x86
============================================================

Symantec Endpoint Protection Client Installations on Windows x86 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/20260430-006-SEF_IU_SEP_14.3_RU5_x86.exe	04/30/2026	4/30/2026	8.62 MB			50F0F978B1D3D298C74B348C4AB8A75A
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection 14.3 RU1 to 14.3 RU5 x86 (Client only)