Transferring an existing domain involves changing the registrar that handles the domain registration service, so after the transfer itself, you will have to manage things like renewal fees or DNS modifications through the new registrar. The transfer process is standard with most generic and country-code TLD extensions. Some country-code extensions are more specific and involve different steps, but in the general case transferring a domain involves several basic procedures and one of them is unlocking the domain name. The lock is a safety feature, which is being adopted by more and more registry operators. It’s a standard feature supported by all generic top-level domain names. If a domain is locked, it will be impossible to start a transfer process, so nobody can even attempt to snatch your domain name. The lock can be annulled only through the account where the domain is registered in the first place and all new domain names that support this feature are locked by default the moment they are registered.