Access Control Flaws and Privilege Escalation

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The concept After reentrancy, missing or incorrect access control is the second-largest category of real-world loss, and it's often far simpler to introduce than a reentrancy bug — a single forgotten modifier is enough. The common patterns: No modifier at all on a function that should be privileged — anyone can call setFeeRecipient(), pause(), or mint(). Right modifier, wrong function……

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