Transferring an already registered domain entails switching the domain registrar that handles the domain registration service, so after the transfer itself, you’ll have to manage things like renewal payments or DNS modifications through the new registrar company. The transfer procedure is standard with most universal and country-specific domain name extensions. Some country-code extensions are more specific and entail different steps, but in the general case transferring a domain involves a few necessary steps and one of them is unlocking the domain. The lock is a security feature, which is being embraced by more and more registry operators. It’s a default feature supported by all gTLDs. If a domain name is locked, it won’t be possible to initiate a transfer procedure, so no one can even try to take your domain name. The lock can be removed only through the account where the domain name is registered and all new domain names that support this option are locked by default when they are registered.