All generic top-level domain name extensions and several country-code ones support a security lock feature whose function is to block unauthorized transfers of existing domain names. Many registry organizations that oversee country-code TLDs that do not support this option are in the process of introducing it for the sake of safety and for the convenience of the domain owners. A domain name can be transferred only if it is unlocked and only a person who has been granted access to the account with the current registrar can do that. New domain names are registered with the lock option activated intentionally, so as to prevent any unapproved transfer attempts. The lock option is among the security measures for controlling the transfer of existing domains between domain name registrars that have been introduced over the years.