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Why Is ‘Immutability’ a Double-Edged Sword for Smart Contracts?

Immutability is beneficial because it guarantees that the contract's rules cannot be changed by any party, ensuring trustlessness. However, it is a risk because if a bug is deployed, it cannot be easily fixed, leading to permanent vulnerability or loss of funds unless a complex upgrade mechanism was built in.

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Why Is the Immutability of Solidity Code a Double-Edged Sword for Smart Contract Development?
How Does Blockchain Immutability Affect Smart Contract Updates or Bug Fixes?