Verizon Internet Security Suite Firewall helps prevent intruders from accessing your system when you are online. Firewall has a few tools to help you control processes such as how your Internet-enabled programs connect to the Internet and how your Internet programs share files over the Internet. You set access rules to control how these processes are handled.

By default, the firewall policy will allow all connections.  To block incoming or outgoing connections, see below on how to change the Internet access rules.
 

To set or change Internet access rules:

1. Click the v-lock icon in the dock to open VISS. 
   
   
2. Click the Internet Security Suite menu and select Preferences. Preferences allow you to configure the anti-malware applications protection and desktop firewall options.
   
   
3. Select the Desktop Firewall tab.
   
   
4. Click the padlock icon at the bottom of the screen.
   
   
5. Type your Macintosh OS password.
   
   
6. In the Rules tab, click Custom and click the plus (+) in the lower left corner of the window.  You can deny or allow by protocol and IP address by entering information into the appropriate fields.
   
   
7. Select OK.