Transferring a domain from one company to another ordinarily involves the use of a special domain name authorization code, which different companies call an EPP key, a domain password or an AuthInfo code. This code can be used as a protection measure against unwanted transfer attempts with all gTLD and with most ccTLD extensions. The code can be obtained only by the domain name registrant and is provided by the current domain registrar company. It must be given to the new registrar because the transfer process cannot be started without it. The code is case-sensitive and normally includes digits and special characters, so as to obstruct unauthorized people from cracking it. Certain companies even reset the codes of domain names registered through them from time to time for even better security.