I don’t know what you thought you understood, but how I understood it is that the code of WhateverGreen is closed-source. The kext is still publicly available to use.
No. What I understood is that the code is not visible to the public, but we are allowed to use it. Can please someone else enlighten us furher?
Closed source means exactly that: 'the code is not visible to the public' by definition. You may or may not be allowed to use it, it is irrelevant. From security point, closed-source means possible backdoors.
Ok first, I am not a dude.Dude
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You may stay connected, just apply some computer hygiene, like don't use free VPNs or click links in emails from Nigerian Prince 
