Transferring a domain name from one registrar company to another normally entails the use of a special authorization code, which different companies refer to as an EPP authentication code, a domain name password or an Auth-Info code. This code can be used as a security measure against unwanted transfer attempts with all gTLD and with most ccTLD extensions. The code can be obtained only by the domain registrant and is issued by the present registrar company. It must be given to the new registrar because the transfer procedure cannot be started without it. The code is case-sensitive and normally contains numbers and special symbols, so as to stop unauthorized individuals from guessing it. Certain companies even reset the codes of domains registered through them once in a while for even greater safety.