Transferring a domain name from one registrar company to another normally entails the use of a unique transfer code, which different companies refer to as an EPP authentication code, a domain name password or an AuthInfo code. This code can be used as a security mechanism against unsolicited transfer attempts with all generic and with most country-code extensions. It can be obtained only by the domain owner and is issued by the present registrar. It must be given to the new registrar because the transfer process cannot be started without it. The code is case-sensitive and ordinarily includes digits and special symbols, so as to impede unauthenticated persons from deciphering it. Certain domain registrars even reset the codes of domain names registered through them after a certain period of time for even greater safety.