{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security challenges of blockchain technology in account interaction?","a":"Privacy protection: In a blockchain network, all transaction records  are public, which means that when users interact with their accounts, their personal information and transaction data are vulnerable to leakage. In order to protect user privacy, blockchain technology needs to continuously optimize data encryption and privacy protection related to account interaction."}]}],"pr":"85b1f7902ac71d2e4b8f69c50aac370bc47bce99542cec405a3b59600474846c"}