In case you wish to transfer a domain name from one registrar to another, you will need a unique transfer authorization code, which may be called by multiple names – an EPP key, an Auth-Info code, a domain name password, and so on. All these names designate one and the same thing – a code that the domain name owner obtains from the current domain name registrar and gives to the new one during the order process. Without a valid code, a domain transfer process cannot be initiated and this is one of the security measures against unsolicited transfer attempts used with all gTLD and with most ccTLD extensions. For even greater safety, the code comprises of digits and/or special characters and is case-sensitive, so if you would like to transfer one of your domain names, you have to present the new company with the right code.