Transferring a domain name from one company to another usually entails the use of a special domain authorization code, which different companies call an EPP key, a domain password or an Auth code. This code can be used as a safety mechanism against unsolicited transfer attempts with all generic and with most country-code extensions. The code can be obtained only by the domain registrant and is issued by the present domain 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 includes digits and special characters, so as to impede unauthenticated individuals from breaking it. Certain domain name registrars even reset the codes of domains registered through them after a certain period of time for better security.