{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What technical vulnerabilities and potential security threats does blockchain technology face?","a":"Consensus  Algorithm Vulnerabilities: The cornerstone of blockchain technology is the consensus algorithm, such as proof of work (PoW) and proof of stake (PoS), but these algorithms are not completely secure. Attackers may utilize their computing advantage to launch double-spending attacks (51% attack) or stake attacks (PoS attack), thereby tampering with blockchain data or preventing transaction confirmation."}]}],"pr":"2b0440432d0163c6b2c3ee6ce05a0294d03cce7edf55b28dc85c08917fd1c0ed"}