Few weeks ago, EOSBet online casino was hacked and they lost over 44,000 EOS (about $240,000) to this hack. The hacker took advantage of a glitch in the EOS smart contract software and extracted EOS from the DApp’s operational wallet. The hacker was able to place bets on the platform without transferring EOS to the smart contract and for winnings, he got paid in EOS from the smart contract while losing nothing in the case of losses. EOSBET admitted that despite multiple audits before the attack, “there was still vulnerability in the smart contract”.

EOSBet had a another hack at the end of august when administrators were alerted to the theft of storage space resources through the EOSBet smart contract which revealed several flaws in the EOS code.  This resulted in the developers having to freeze their DApp temporarily to minimize damage.

Another decentralized betting platform, DEOS Games also reported suffering a hack attack on their platform to which they lost about $23,000 in the process. They received a malicious contract exploit on their smart contract which allowed $1000 to one user 24 times just within an hour!

Interestingly, the two casinos have similar sentiments regarding these hack attacks on their smart contract. They both say it is a good stress test of the vulnerability of their smart contract and that significant improvements have been made to prevent future attacks.