When you deposit fiat currency and use it to purchase crypto, the purchased crypto may be subject to a temporary protection period. This automated risk check is designed to protect you and OKX from fraudulent activity.The hold may apply to crypto purchased using: A recent bank transfer A recently linked card paymentHow long is the hold? The hold period varies depending on your deposit method and amount.

Подробности доступны по ссылке https://www.okx.com/help/what-is-an-aa-smart-contract-wallet. Команда OKX 1 декабря 2023 г.