login shortcut unsecure?

Hello. I have seen this given as a shortcut to login to a control panel on a linux server and I know it works...
(in the address bar with http):username:passwor(at)yourdomain.com:2082/
My question is: Is it safe? In other words is it any less secure than just using the login box that otherwise would come up?
This method is transmitting the user/pass combination by http (which could be intercepted I know), but what method is the ordinary login box using?
If is makes a difference I am on Redhat 7.3 with WHM/cpanel.
Would this make any difference (or would it be worse)?
(in the address bar after the https): username:password(at)yourdomain.com:2083/
Joe

 

 

 

 

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