Transferring a domain from one company to another commonly entails the use of a special domain name authorization code, which different registrar companies refer to as an EPP authentication code, a domain password or an Auth code. This code can be used as a security measure against unapproved 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 current registrar. It must be given to the new domain name registrar company because the transfer procedure cannot be started without it. The code is case-sensitive and generally comprises of digits and special characters, so as to impede unauthorized people from cracking it. Some domain registrars even reset the codes of domains registered through them after a particular period of time for even greater safety.