Transferring a domain from one company to another generally entails the use of a special domain authorization code, which different registrar companies call an EPP authorization code, a domain name password or an Auth-Info code. This code can be used as a safety measure against unsolicited transfers with all generic and with most country-code extensions. The code can be obtained only by the domain name registrant and is provided by the present domain name 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 typically includes digits and special characters, so as to hinder unauthorized people from guessing it. Some companies even change the codes of domains registered through them every now and then for even better security.