If you decide to transfer a domain from one domain name registrar to another, you will have to go through a couple of safety steps. One of them is getting a unique EPP authorization code from the current domain name registrar – as long as you are the registrant, since the code is emailed to the domain owner’s email account and nobody else can get it. You’ll need to give this code to the new registrar, otherwise they will not be able to start the domain name transfer procedure. The EPP authorization codes are case-sensitive and may include numbers or special symbols such as commas or dots, which can be easily miswritten, so make sure you copy & paste the correct code. As an extra security measure, the transfer authorization code for a domain may be changed regularly. Certain registrars refer to this code as an Auth key, a domain secret or a domain password as well.