Transferring a domain name from one registrar company to another commonly entails the use of a unique domain authorization code, which different registrar companies refer to as an EPP authorization code, a domain name password or an Auth-Info code. This code can be used as a security mechanism against unwanted transfer attempts with all gTLD and with most ccTLD extensions. The code can be obtained only by the domain name owner and is issued by the present domain name registrar company. It must be given to the new domain name registrar company because the transfer procedure cannot be initiated without it. The code is case-sensitive and often comprises of digits and special symbols, so as to hinder unauthenticated individuals from hijacking it. Certain registrar companies even reset the codes of domains registered through them after a certain interval of time for greater security.