Transferring a domain from one registrar company to another typically entails the use of a unique transfer authorization code, which different registrar companies refer to as an EPP key, a domain name password or an Auth code. This code can be used as a security mechanism against unauthorized transfers with all gTLD and with most ccTLD extensions. The code can be obtained only by the owner of the specific domain and is provided by the current registrar. It must be given to the new domain registrar company because the transfer procedure cannot be started without it. The code is case-sensitive and often comprises of digits and special characters, so as to obstruct unauthenticated individuals from guessing it. Some companies even reset the codes of domains registered through them after a particular amount of time for even greater safety.