Transferring a domain from one registrar company to another typically involves the use of a special transfer code, which different registrar companies refer to as an EPP authentication code, a domain name password or an Auth code. This code can be used as a safety measure against unwanted 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 registrar because the transfer process cannot be initiated without it. The code is case-sensitive and normally includes numbers and special characters, so as to impede unauthenticated individuals from guessing it. Certain domain registrars even reset the codes of domains registered through them periodically for better safety.