You think correctly.

This is a an explanation taken from www.symantec.com/docs/HOWTO55250:

• Symantec and Community Trusted

  This level skips files that are trusted by Symantec and the Symantec Community.

• Symantec Trusted

  This level skips only files that are trusted by Symantec.

Symantec Community are all the users of Symantec products. So the files signed by Community as Trusted, are in the category "Community Trusted".

Please keep in mind that the suggested security option is "Symantec Trusted"

Symantec Trusted : All files signed by symantec and Norton

Community Trusted: its from Norton Community

Hello,

You are almost correct. Let me get that corrected.

Symantec Trusted are the Symantec signed Files, whereas Community Trusted are the files which are Symantec and Norton signed, Microsoft Catalog Signed, or Authenticode Signed.

and other files are based on Reputation:

How Symantec Endpoint Protection uses reputation data to make decisions about files

http://www.symantec.com/docs/HOWTO55275

To know more check this Whitepaper on Symantec Insight on 

https://www-secure.symantec.com/connect/downloads/insight-deployment-best-practices-whitepaper

Incase, you want to check the Symantec Download Insight, check this Video:

https://www-secure.symantec.com/connect/videos/symantec-download-insight-symantec-endpoint-protection-121

Hope that helps!!

Thanks for the clarification but how can be sure that a Community Trusted file is safe, does Symantec Security Response Team analysed the actual files?

Hello,

Yes, Community trusted file is safe as Security Response Team analyse these files as well.

In case you have any doubts on a specific file you can always upload the file in zipped folder to Security Response team for confirmation.

Regards,

Guru