Security Audit Report: Reentrancy & Access Control Review: Arbitrum Bridge

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Security Audit Report: Reentrancy & Access Control Review: Arbitrum Bridge Target Protocol: Arbitrum Bridge (TVL: $3727.0M) Reentrancy & Access‑Control Review – Arbitrum Bridge Date: 3 Oct 2026 Prepared by: [Your Name] – Senior DeFi Security Researcher & Smart‑Contract Auditor The Arbitrum Bridge is the primary trust‑minimized gateway for moving assets between Ethereum L1 and the Arbitrum roll‑up (L2). With ≈ $3.73 B TVL, it is a high‑value target for adversaries seeking to exploit reentrancy bugs or insufficient access‑control mechanisms. Our audit focused on the core bridge contracts (Inbox,

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