If you want to transfer a domain from one domain name registrar to another, you will need to go through a few security procedures. One of them is getting a unique EPP code from the current domain registrar – on the condition that you are the domain registrant, since the code is emailed to the owner's email and no one else can see it. You’ll have to give this code to the new domain registrar, otherwise they won’t be able to start the transfer procedure. The EPP codes are case-sensitive and may comprise of numbers or special symbols such as dots or commas, which can be easily misentered, so make sure you copy/paste the right code. As an additional safety measure, the transfer code for a domain may be changed on a regular basis. Certain domain name registrars refer to this code as an Auth key, a domain password or a domain secret as well.