What are some case studies in smart contract security?
There are several notable case studies in smart contract security, such as the DAO hack in 2016, which exploited vulnerabilities in the Ethereum smart contract.
Can you explain how the DAO hack occurred?
The DAO hack occurred due to a reentrancy vulnerability in the smart contract code, allowing the attacker to withdraw funds multiple times before the contract could update its balance.
What lessons were learned from that incident?
The incident highlighted the importance of thorough code audits, the need for better security practices, and the necessity of implementing fail-safes in smart contracts.
Are there any other significant incidents?
Yes, another significant incident was the Parity wallet hack, where a vulnerability led to the loss of over $150 million worth of Ether.
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