You Can Get This Free Crypto-If the 'Orb' Scans Your Eye
Altman, however, says that the system is secure and that the company will not be storing user data. Every picture of an iris will be converted into a digital code, called an IrisHash, which will be stored in Worldcoin's database to check against future IrisHashes and deny coins to known users; the pictures themselves will be erased from the database.
https://www.wired.com/story/get-free-crypto-orb-scans-eye/