Transferring a domain from one registrar company to another traditionally entails the use of a special transfer code, which different registrar companies refer to as an EPP authorization code, a domain password or an AuthInfo code. This code can be used as a safety mechanism against unapproved transfers with all generic and with most country-code extensions. It can be obtained only by the owner of the particular domain and is provided by the present domain registrar company. It must be given to the new registrar company because the transfer procedure cannot be started without it. The code is case-sensitive and ordinarily comprises of numbers and special characters, so as to obstruct unauthorized individuals from breaking it. Some registrars even alter the codes of domains registered through them after a certain amount of time for even greater security.