Secure Copy is a UNIX standard used to transfer files from one computer to another. He's how to use the function in macOS, all via the Terminal window.

FTP was the popular protocol for file transfer but short of using FTPS, it doesn't provide the security required these days. Here's how to use Secure Copy (SCP) for file transfer.

I installed WinSCP using the Custom Installation option, and at the Select Additional Tasks step, I made sure that Add installation directory to search path box was checked.