Transferring a domain name from one registrar company to another typically entails the use of a unique domain name authorization code, which different companies call an EPP authentication code, a domain name password or an Auth code. This code can be used as a safety measure against unauthorized transfer attempts with all gTLD and with most ccTLD extensions. It can be obtained only by the owner of the specific domain and is provided by the present domain registrar company. It must be given to the new domain name registrar company because the transfer cannot be initiated without it. The code is case-sensitive and usually contains digits and special characters, so as to hinder unauthorized individuals from hijacking it. Some registrar companies even reset the codes of domain names registered through them after a particular interval of time for even greater security.