White hat hacker recovers $2M from faulty 2016 ICO smart contract

White hat hacker 0xflorent recovered $2 million in Ether locked in Hong Coin's faulty 2016 ICO smart contract for nearly a decade. The refund function bug prevented automatic refunds to 48 investors. By exploiting an admin function vulnerability, 0xflorent helped HONG creators unlock and redistribute funds. This highlights legacy DeFi risks and the importance of security audits for early-stage projects.
Key takeaways
- 1White hat hacker 0xflorent recovered $2 million in Ether stuck in Hong Coin's 2016 ICO smart contract for nearly a decade.
- 2A refund function bug prevented automatic refunds to 48 investors; recovery used an admin function vulnerability to reset balances.
- 3Hong Coin ICO started August 2016, failed to reach funding goal, and was supposed to auto-refund but funds remained locked until recovery.
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Why it matters
This recovery highlights critical security risks in early DeFi projects and legacy smart contracts still holding investor funds. For Indian retail investors, it underscores the importance of auditing ICO code before participation and shows white hat hackers can recover lost funds from poorly designed contracts.
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