Poly Network hack $ 611 million and the hacker return the fund

Photo by Josh Appel on Unsplash

Background

What is the Poly Network?

PolyBridge Support Cross Chains

How does the Poly Network connect with other networks?

Poly Network Architecture

Key Problem

verifyHeaderAndExecuteTx Security Hole
EthCrossChainData Contract Security Hold
executeCrossChainTx Contract Security Hole

Specific Question

PeckShield analysis Poly Network hack event

Approach

Key Takeaways

Future Work

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