Transferring a domain name from one company to another usually entails the use of a special domain authorization code, which different companies refer to as an EPP authentication code, a domain password or an AuthInfo code. This code can be used as a safety measure against unwanted transfers with all generic and with most country-code extensions. It can be obtained only by the domain owner and is provided by the current domain registrar company. It must be given to the new registrar because the transfer process cannot be initiated without it. The code is case-sensitive and frequently comprises of digits and special symbols, so as to prevent unauthenticated people from hijacking it. Certain companies even alter the codes of domains registered through them after a particular interval of time for greater safety.