Transferring a domain name from one registrar company to another commonly involves the use of a special transfer authorization code, which different registrar companies call an EPP authorization code, a domain password or an Auth-Info code. This code can be used as a security measure against unapproved transfers with all gTLD and with most ccTLD extensions. The code can be obtained only by the domain name owner and is provided by the current domain registrar company. It must be given to the new registrar because the transfer procedure cannot be initiated without it. The code is case-sensitive and traditionally comprises of numbers and special symbols, so as to stop unauthorized people from hijacking it. Certain domain name registrars even change the codes of domain names registered through them once in a while for even greater safety.