Explore free, open-source firewall utilities like LuLu or Objective-See tools. These allow you to monitor and block outgoing network connections on an app-by-app basis. If you want to find the best tool for your budget, tell me: What is your macOS version ? What is your monthly data limit ? Do you prefer automation or manual control ? Share public link

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If you are looking for more ways to optimize your Mac, consider checking for the ⁠latest official update on the App Store .