Edit those rules to “Owner: Anyone” in order to make them global and set them to your needs. After typing your admin password, you should be able to see the Little Snitch app window with the rules for the user “_sophos”. If there are error messages in the terminal, you can safely ignore them.) (Open /Applications/Utilities/Terminal.app and paste the previous line into it, then hit Return and confirm. Sudo -u _sophos /Applications/Little\ Snitch.app/Contents/MacOS/Little\ Snitch Applications/Little Snitch Configuration. so just check if you have these, trash them, then reboot. Open Little Snitch app as the user “_sophos” via the following Terminal command: i have Little Snitch and just did a Finder search with 'System files - included' and here are all the files that were installed. Enable “Little Snitch Preferences > Security > Allow Global Rule Editing”. In order to access the rules for the user “_sophos”, they have to be made available to all users: Little Snitch now monitors access to Berkeley Packet Filter devices. Added compatibility with macOS Catalina (10.15). More information will be made available later, when most users have upgraded to the latest version. This is why you cannot create a permanent rule (“Forever”) from that connection alert since it is not made by a system or active user process, but by a different user (“_sophos”) instead. The vulnerability has been assigned the number CVE-2019-13013. The “_sophos” user is set up with a user identifier above 500 which is usually not used for such processes (see e.g. With Little Snitch its possible to decide which programs can send data through the Internet, and which cannot. There are also rule categories for “Global Rules” and ”System Rules” in the Little Snitch app window to give an overview for such rules. Little Snitch works in the same vein as a firewall, but the difference is that instead of restricting connections from entering, it restricts connections and data from leaving. To be able to setup the last-mentioned “Anyone” rules, ”Allow Global Rule Editing” has to be enabled in the “Little Snitch Preferences > Security” settings. all users respectively “Anyone”-such rules are valid for every user on the system (system and all user processes) “System” for all system processes running as “root” or other system users (those marked with a gear wheel icon) the current user “Me” for all processes running for the current active user Rules in Little Snitch can have different kinds of process owners This will show you the ID for the user "_sophos". You can see this when you press the D key in a Little Snitch Connection Alert. Sophos uses processes called “Sophos.bundle” which install itself as a new user on the system (user: “_sophos”). There is one fixable issue on boot when Sophos keeps requiring approval of Little Snitch Rules even though you approved the rules on the last boot.
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