If you decide to transfer a domain from one registrar company to another, you will have to pass through a couple of security procedures. One of them is obtaining a special EPP authentication code from the current registrar company – as long as you are the domain registrant, since the code is sent to the domain owner’s email address and nobody else can obtain it. You need to give this code to the new registrar company, otherwise they will not be able to begin the domain name transfer. The EPP codes are case-sensitive and may include digits or special characters such as commas or dots, which can be easily mistyped, so make sure you copy/paste the correct code. As an extra safety measure, the transfer code for a domain name may be altered regularly. Certain domain registrars call this code an Auth key, a domain password or a domain secret as well.