Transferring a domain name from one company to another commonly involves the use of a unique transfer code, which different companies call an EPP authentication code, a domain name password or an AuthInfo 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 given domain and is provided by the current registrar. It must be given to the new registrar company because the transfer process cannot be initiated without it. The code is case-sensitive and commonly comprises of numbers and special characters, so as to impede unauthorized individuals from breaking it. Certain registrars even reset the codes of domain names registered through them every now and then for better security.