If you decide to transfer a domain from one registrar company to another, you will have to go through several security procedures. One of them is getting a unique EPP code from the present domain name registrar – on the condition that you are the domain registrant, since the code is emailed to the domain owner’s email account and no one else can see it. You need to give this code to the new registrar, otherwise they will not be able to begin the domain name transfer procedure. The EPP authentication codes are case-sensitive and may contain digits or special symbols such as commas or dots, which can be easily mistyped, so make sure you copy/paste the correct code. As an extra protection measure, the transfer code for a domain may be changed on a regular basis. Certain domain registrars call this code an Auth key, a domain secret or a domain password as well.