The same happens when you stream music from YouTube or watch a movie from Netflix. For example, when you send out an email or send a message using your messaging apps, you are sending out data to the internet. Most of the information being sent out by apps on your computer are initiated by the user. This little software serves like a filter for all your outgoing traffic, so you know who your Mac communicates with outside your network and what data is sent out. Your system can send out any message or data to the internet unhindered, and most of the time, the user is not even aware of these activities.įortunately, Little Snitch has stepped up and taken the role of managing all outgoing communications from your computer. However, there is no built-in feature that controls what information or traffic goes out of your Mac. A firewall keeps tabs on all incoming traffic, blocking unwanted guests from the internet who want to access your Mac.
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