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Auditing Who Controls DeFi Protocol Upgrades Requires Careful Blockchain Analysis

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Leaked admin keys have become the leading cause of DeFi losses, surpassing smart contract bugs. A technical blog post demonstrates how to audit upgrade authorization for contracts using a series of specific blockchain calls. The article outlines five common pitfalls in this process, including older proxy standards and off-chain admin structures. It applied this method to 146 Morpho vaults to illustrate the practical checks involved.

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