Transferring an existing domain entails changing the registrar that handles the domain registration service, so after the transfer, you will have to manage things like renewal payments or DNS entry modifications through the new registrar. The transfer procedure itself is standard with most TLD extensions. Certain country-code extensions are more specific and entail different steps, but in the general case transferring a domain name entails a few necessary procedures and one of them is unlocking the domain name. The lock is a safety option, which is being embraced by more and more registry operators. It’s a standard feature supported by all generic top-level domain names. If a domain name is locked, it will be impossible to initiate a transfer procedure, so no one can even try to register your domain. The domain lock can be annulled only through the account where the domain is registered in the first place and all new domains that support this functionality are locked by default when they are registered.