If you would like to transfer a domain name from one registrar company to another, you’ll need to pass through a few security steps. One of them is obtaining a special EPP authorization code from the current domain name registrar – on the condition that you are the domain registrant, since the code is sent to the owner's mailbox and no one else can get it. You have to provide this code to the new domain registrar, otherwise they will not be able to initiate the transfer procedure. The EPP authentication codes are case-sensitive and may contain numbers or special symbols such as dots or commas, which can be easily miswritten, so make sure you copy & paste the right code. As an extra security measure, the transfer code for a domain name may be altered regularly. Certain registrars call this code a domain password, a domain secret or an Auth key as well.