Transferring a domain from one registrar company to another normally involves the use of a unique transfer code, which different companies call an EPP authentication code, a domain name password or an Auth-Info code. This code can be used as a security mechanism against unwanted transfers 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 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 frequently comprises of numbers and special characters, so as to hinder unauthorized persons from breaking it. Some registrars even reset the codes of domains registered through them from time to time for even greater security.