Daily Hack
A fresh 60-second challenge every day. Solve it, earn XP, and keep your streak alive.
Daily Hack #61
Find the reentrancy bug
This Solidity vault sends ether to the caller before it updates the caller's balance. A malicious contract can call back in during that gap and drain the vault. Read the contract and type the name of the function with that flaw.
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Solved!
+10 XP
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