The brand new Arbitrum-based defi casino GMBL.COMPUTER was exploited for around 471 ETH (~$770,000). The project, which promises to “generate yield from casino games”, had officially launched only hours earlier. The GMBL team later stated that they believed the exploit was due to a flaw in the platform’s referral system, where people could place bets without depositing any funds and use them to generate referral bonuses.
GMBL offered a “bug bounty” to the attacker, inviting them to return 90% of the stolen funds in exchange for a promise not to pursue legal action. The exploiter later returned 235 ETH (~$382,000), or half what they had stolen.
GMBL promised that “we are going to thoroughly test everything again before re launching”.
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