Transferring a domain from one registrar company to another typically entails the use of a special domain name authorization code, which different registrar companies refer to as an EPP key, a domain name password or an AuthInfo code. This code can be used as a safety mechanism against unwanted transfers with all generic and with most country-code extensions. The code can be obtained only by the owner of the specific domain and is issued by the present registrar company. It must be given to the new domain name registrar company because the transfer process cannot be started without it. The code is case-sensitive and normally includes numbers and special symbols, so as to impede unauthorized individuals from deciphering it. Some registrars even alter the codes of domains registered through them after a given period of time for even better safety.