 A paper published in May 2016 noted a number of security vulnerabilities associated with The DAO, and recommended that investors in The DAO hold off from directing The DAO to invest in projects until the problems had been resolved.An Ethereum developer on GitHub pointed out a flaw relating to "recursive calls" in early June that was picked up and blogged by Peter Vessenes, founder of the Blockchain Foundation on June 9, and by June 14, fixes had been proposed and were awaiting approval by members of The DAO.On June 16 further attention was called to recursive call vulnerabilities by bloggers affiliated with the Initiative for CryptoCurrencies & Contracts (IC3).