If you decide to transfer a domain from one company to another, you’ll need to pass through a few safety steps. One of them is obtaining a special EPP authentication code from the current domain registrar – provided that you are the domain registrant, since the code is emailed to the domain owner’s email account and nobody else can obtain it. You’ll need to give this code to the new domain registrar, or else they will not be able to initiate the domain transfer process. The EPP authorization codes are case-sensitive and may comprise of numbers or special symbols such as dots or commas, which can be easily miswritten, so make sure you copy & paste the correct code. As an extra security measure, the transfer code for a domain may be altered regularly. Certain registrars refer to this code as a domain secret, an Auth key or a domain password as well.