Transferring a domain from one registrar company to another typically entails the use of a unique transfer code, which different companies refer to as an EPP key, a domain password or an Auth code. This code can be used as a protection mechanism against unsanctioned transfer attempts with all generic and with most country-code extensions. It can be obtained only by the domain name registrant and is issued by the current 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 generally contains digits and special characters, so as to stop unauthorized people from guessing it. Certain registrars even reset the codes of domains registered through them after a given interval of time for even better safety.