Yes, most online casinos require players to complete a KYC (Know Your Customer) process before they can withdraw their winnings. This is done in order to verify the player's identity and prevent fraud or money laundering. The KYC process usually involves submitting documents such as a government-issued ID, proof of address, and sometimes even a selfie holding the ID. We think that if you chose a reputable online casino, the benefits of completing KYC outweight the risks. However, if you are confident in the safety of the casino you choose, and are prepared to take the risk, you may choose to play without KYC in order to avoid sending your personally identifiable data to a third party.