{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the biggest risk faced by blockchain upgrading?","a":"Security Risks: The upgrade of the blockchain may expose existing security vulnerabilities  or create new ones. Hackers may take advantage of these vulnerabilities to launch attacks"}]}],"pr":"7a94e1ebc6d9e443b64617c5a2755d430772055269e8bd94fe0a0d44063642f1"}