Auth Code
An Auth-Code, also referred to as an EPP code, authorization code, transfer code, or Auth-Info Code, is a passcode generated to authorize the transfer of a domain name between registrars. It serves as confirmation that the domain owner has approved the transfer.
Extensible Provisioning Protocol (EPP)
The Extensible Provisioning Protocol (EPP) is a flexible protocol developed for managing and allocating resources within registries over the Internet. It was created to facilitate communication between domain name registries and registrars, handling transactions such as domain registrations and renewals. EPP also plays a role in preventing domain hijacking by securing these processes.