Transferring a domain name from one company to another usually entails the use of a special transfer code, which different companies refer to as an EPP key, a domain password or an AuthInfo code. This code can be used as a protection mechanism against unsolicited transfer attempts with all generic and with most country-code extensions. It can be obtained only by the owner of the specific domain and is issued by the present registrar company. It must be given to the new registrar company because the transfer process cannot be initiated without it. The code is case-sensitive and usually includes numbers and special characters, so as to stop unauthorized persons from cracking it. Some registrars even reset the codes of domains registered through them after a certain interval of time for even better safety.