Transferring a domain name from one registrar company to another traditionally entails the use of a unique transfer authorization code, which different companies call an EPP authorization code, a domain name password or an Auth-Info code. This code can be used as a protection mechanism against unwanted transfer attempts with all generic and with most country-code extensions. It can be obtained only by the domain name registrant and is issued by the present registrar company. It must be given to the new registrar because the transfer cannot be started without it. The code is case-sensitive and traditionally includes digits and special symbols, so as to hinder unauthenticated people from breaking it. Some domain registrars even reset the codes of domain names registered through them once in a while for even better security.