I don't understand how this isn't hackable. Wouldn't someone be able to just reverse engineer this Orb device, and then create millions of fake iris hashes in t

I don't understand how this isn't hackable. Wouldn't someone be able to just reverse engineer this Orb device, and then create millions of fake iris hashes in the ETh blockchain? If they are handing out free crypto for new users, one per new iris hash uploaded, why not just bypass the physical scanning process and upload a gazillion randomly generated hashes?