Transferring a domain from one company to another traditionally entails the use of a unique 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 security measure against unapproved transfer attempts with all gTLD and with most ccTLD extensions. The code can be obtained only by the domain name registrant and is provided by the current registrar. It must be given to the new registrar company because the transfer procedure cannot be started without it. The code is case-sensitive and often comprises of numbers and special symbols, so as to stop unauthenticated persons from hijacking it. Certain domain registrars even reset the codes of domain names registered through them after a certain amount of time for greater safety.