If you want to transfer a domain from one company to another, you’ll need a unique code, which may be referred to by multiple names – an EPP authentication code, an Auth-Info code, a domain password, etc. All these names refer to the exact same thing – a code that the domain name owner gets from the current domain registrar and provides to the new one during the order procedure. Without a valid code, a domain name transfer process cannot be initiated and this is one of the protection measures against unwanted transfer attempts used with all generic and with most country-specific extensions. For even greater security, the code contains digits and/or special symbols and is case-sensitive, so if you want to transfer one of your domains, you need to provide the new company with the right code.