Mac OS X
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⚠ Note: This product is not developed anymore and might not function properly.
If you are looking for an alternative, we recommend you to download Little Snitch.
Having a powerful firewall installed on your Mac represents the first line of defense against countless types of online threats that are constantly connecting to desktop and laptop computers of ordinary people and businesses, seeking victims for spreading their malicious software or stealing confidential or private data.
Visually, TCPBlock for Mac is a little bare and business-like, offering everyone from novices to professionals an easy way to see listings of their local applications that are requesting connection to the internet. These connections can be easily managed and organize so that you always have full control over the way your home internet connection is utilized.
This fast, reliable, and easy-to-use program was built to protect your Mac from the very moment it starts to power on, and because that majority of it is integrated tightly with the macOS kernel via a carefully designed module.
After boot, TCPBlock reads the configuration file that the user has made by visiting its preference pane in System Preferences, and from that moment on takes the role of watchful guardian of your system.