If you decide to transfer a domain name from one company to another, you’ll have to pass through a couple of security procedures. One of them is obtaining a special EPP authentication code from the current registrar company – provided that you are the domain registrant, since the code is sent to the domain owner’s mailbox and nobody else can get it. You will need to give this code to the new registrar company, otherwise they will not be able to begin the domain name transfer process. The EPP authentication codes are case-sensitive and may contain digits or special symbols such as dots or commas, which can be easily mistyped, so make sure you copy & paste the correct code. As an extra security measure, the transfer code for a domain name may be altered on a regular basis. Certain registrars refer to this code as a domain password, a domain secret or an Auth key as well.