This is what I got...
DTVS ? Domain Transfer Verification Service
seems there is a paid version if ya don't have enough domains to get it free which includes the Deadbolt Transfer Protection but sounds like having access to whois email address is needed
https://www.godaddy.com/help/what-is...istration-1286
sure some other registrars probably have enhanced security as well so you'd have to peep that as I just use godaddy based on...
haven't found anyone to beat my pricing
Deadbolt Transfer Protection
I sell domains and everyone has already heard of godaddy or has an account there already so makes end user sales quicker and more trusted as when your taking 4-6 figures from someone a familiar name or any trust factor ya can add to a deal helps