SIP is a collection of protection features. You can disable bits and pieces, or all of it. Disabling SIP is generally a bad idea, but there are times when it c

SIP is a collection of protection features. You can disable bits and pieces, or all of it. Disabling SIP is generally a bad idea, but there are times when it can be useful, e.g. modifying stock applications like Dock.app. You don't need to disable SIP to run unsigned code. If a binary is unsigned all you need to do is hold a key down while clicking the program. macOS will show a warning popup and let you continue. This isn't super user friends, but then again the majority of Apple's customers are not going to (or want to) run untrusted code, and if you do want to run untrusted code it is not that big of an inconvenience.