Transferring an existing domain involves switching the registrar that handles the registration service, so after the transfer itself, you’ll have to manage things like renewal fees or DNS resource record modifications through the new registrar. The transfer procedure itself is standard with most generic and country-code Top-Level Domain extensions. Some country-code extensions are more specific and entail different steps, but in the general case transferring a domain entails a few necessary steps and one of them is unlocking the domain name. The lock is a security option, which is being embraced by more and more domain name registry operators. It is a default feature supported by all gTLDs. If a domain name is locked, it will not be possible to start a transfer procedure, so nobody can even try to snatch your domain. The domain 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.