Transferring a domain name from one company to another usually entails the use of a special domain name authorization code, which different companies call an EPP authorization code, a domain password or an AuthInfo code. This code can be used as a safety mechanism against unwanted transfer attempts with all generic and with most country-code extensions. The code can be obtained only by the domain name owner and is provided by the current domain name registrar company. It must be given to the new domain registrar company because the transfer process cannot be started without it. The code is case-sensitive and usually contains numbers and special symbols, so as to hinder unauthenticated people from guessing it. Some companies even change the codes of domains registered through them after a particular interval of time for better security.