You can use the application rule of V3 for Mac to allow or block user-specified programs from connecting to the network.

To Set Up the Rule

1. Click the ‘Settings’ button at the bottom left of the main V3 screen.

2. Select [Application Rules] from Settings, then click the lock at the bottom to enter the macOS system password.

3. Select the check box next to ‘Enable Application Rules’ to enable it.

To Add and Modify the Rule

1. Click the ‘+’ button to select a program or file.

2. Select the program to add to the rules, and then click [Open].

3. When the selected program is added to the list of rules, ‘Allow incoming connections’ is selected by default.

Click ‘Allow incoming connections’ to change to ‘Block incoming connections’.

4. After completing the settings, click [OK] to save the changes.

To Delete the Rule

Select the application rule to delete, and then click the ‘-’ button to delete the rule.