If you would like to transfer a domain name from one domain registrar to another, you will need to pass through a couple of security procedures. One of them is obtaining a special EPP authentication code from the current registrar company – on the condition that you are the domain registrant, since the code is sent to the owner's email address and nobody else can get it. You’ll need to give this code to the new domain registrar, otherwise they will not be able to begin the domain transfer procedure. The EPP authentication codes are case-sensitive and may include numbers or special characters such as commas or dots, which can be easily miswritten, so make sure you copy and paste the right code. As an extra security measure, the transfer authorization code for a domain name may be changed on a regular basis. Certain registrars refer to this code as an Auth key, a domain password or a domain secret as well.