Hey there, so far I have been using CIS and KIS which come naturally with a pre-configured ruleset for browser,mail,etc. I have now switched to ESET Smart Security v8 with interactive firewall mode which has pre-configured rules for the system (although I still get asked for runddll32.dll and svchost.exe). I am now wondering which rules I should create for my system and also my apps. E.g. browser only outgoing tcp/udp to port 80,443,8080. What about torrent, mail, skype, other system files/process,.... ? What are your rulesets that you created ? Thanks @Edit: Something like this but for more apps would be usefull https://www.wilderssecurity.com/threads/customizing-firewall-rules-application-rules.4423/