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https://docs.sophos.com/support/surf/en-us/index.html?contextId=sf-medium-web-filtering-LAN-WAN

Enable web filtering on traffic passing from LAN to WAN

Medium

Explanation

It is recommended to block executable file types since the infection risk is high. A file click execution might trigger malicious code or payload. Furthermore, attaching an executable file type is not a good security practice. The executable files are blocked over email, but someone can still send the link to download them over the web. Blocking the executable files over both email and web is highly recommended.

Resolution

  1. Go to PROTECT > Email > Policies & exceptions.
  2. Open or add an SMTP route & scan policy.
  3. Select Executable Files under File protection.
  4. Click Save.
  5. Go to PROTECT > Web > File types.
  6. Ensure that your concerned executable file type is added.

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