One of the security features in macOS is a prompt that appears when opening a program for the first time: This is an application downloaded from the Internet. Are you sure you want to open it?
While this can be helpful to the average Joe, preventing him from opening programs he may have downloaded accidentally (such as malware), power users may wish to circumnavigate the prompt. If you already practice good housekeeping with what you download and open, this dialog can be a time waster. There are various ways to deal with it, and this guide will talk you through their pros and cons.