Transferring a domain from one registrar company to another generally involves the use of a unique transfer authorization code, which different companies refer to as an EPP authorization code, a domain password or an AuthInfo code. This code can be used as a safety measure against unsolicited transfer attempts with all generic and with most country-code extensions. The code can be obtained only by the owner of the given domain name and is provided by the current domain registrar company. It must be given to the new registrar because the transfer cannot be initiated without it. The code is case-sensitive and ordinarily comprises of numbers and special symbols, so as to stop unauthenticated people from guessing it. Certain domain name registrars even alter the codes of domain names registered through them every now and then for even greater safety.