Nice Post ❤️👍, the blockchain is secure until and unless someone gains more than 50% computing power of the network, and so it's called 51% attack considering there is not flaw with the smart contracts.
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If it's work on proof of work than 51 % attack not possible
Yeah right. Then they will have to temper the entire history of the blockchain to make the tampered block valid, which is not economically feasible as of now.
True