{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What aspects should be noticed when setting up security for blockchain nodes?","a":"Use strong and unique  passwords for node management accounts, and regularly change them to prevent unauthorized access."}]}],"pr":"5436fbb34b2561325f47be1cf42e5737c06f45210fee2f95dc3116b2bc423afd"}