Little Snitch is a very useful, user-friendly bit of software for the Mac that helps you control which software communicates with the Internet.
Because its only on sale once in a blue moon, I wanted to post this because its not so obvious that if you provide a student e-mail you will receive a 30% discount without waiting for another Black Friday. I can confirm this works with the family license as well.
DESCRIPTION
As soon as you’re connected to the Internet, applications can potentially send whatever they want to wherever they want. Most often they do this to your benefit. But sometimes, like in case of tracking software, trojans or other malware, they don’t.
But you don’t notice anything, because all of this happens invisibly under the hood.
Little Snitch
makes these Internet connections visible and puts you back in control!
Single $45USD to $31.50USD
Family (5 Macs) $89USD to $62.30USD
Multi License (5x) $179USD to $125.30USD
Multi License (10x) $310USD to $217USD
Little Snitch + Micro Snitch - Single License $47USD to $32.90USD
Upvote for username