Transferring a domain name from one company to another usually involves the use of a unique transfer authorization code, which different registrar companies refer to as an EPP authorization code, a domain password or an AuthInfo code. This code can be used as a protection measure against unsolicited transfers with all gTLD and with most ccTLD extensions. The code can be obtained only by the owner of the given domain name and is issued by the present domain name registrar company. It must be given to the new domain registrar company because the transfer procedure cannot be initiated without it. The code is case-sensitive and generally includes digits and special characters, so as to hinder unauthenticated individuals from cracking it. Certain domain name registrars even reset the codes of domain names registered through them after a particular interval of time for better security.