Transferring a domain name from one registrar company to another normally involves the use of a unique transfer authorization code, which different companies refer to as an EPP key, a domain name password or an Auth-Info code. This code can be used as a safety measure against unauthorized transfers with all generic and with most country-code extensions. It can be obtained only by the domain owner and is provided by the present registrar. It must be given to the new registrar because the transfer cannot be initiated without it. The code is case-sensitive and often contains numbers and special symbols, so as to prevent unauthenticated people from deciphering it. Some domain name registrars even reset the codes of domain names registered through them after a given amount of time for better safety.