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. 2020 Feb 11;22(2):203. doi: 10.3390/e22020203
Algorithm 3 Vulnerable Decentralised Autonomous Organization (DAO) smart contract example.
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    //DAOexample.sol

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    contract DAOexample {

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        mapping(address => uint256) public funds;

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        function incrementUserCredit() payable {

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           funds[msg.sender] += msg.value;

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        }

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        function getUserCreditAmount() returns (uint) {

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           return funds[msg.sender];

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        }

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        function recoverUserCredit(uint amount) {

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           if (amount <= funds[msg.sender]) {

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                msg.sender.call.value(amount)();

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                funds[msg.sender] -= amount;

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           }

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        }

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    }