Transferring a domain from one company to another generally entails the use of a unique domain name authorization code, which different registrar companies call an EPP authorization code, a domain password or an Auth code. This code can be used as a security mechanism against unsanctioned 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 domain registrar company. It must be given to the new registrar because the transfer process cannot be started without it. The code is case-sensitive and usually contains digits and special characters, so as to obstruct unauthenticated persons from hijacking it. Some domain name registrars even reset the codes of domain names registered through them after a particular interval of time for even better safety.