The HackerOne engineer who discovered the MCD vulnerability received a $50,000 bounty for the discovery. Chris Smith, senior software engineer at MakerDAO, reviewed the HackerOne report and concluded that leaving the “flip.kick” function publicly callable opens an attack vector that could allow significant collateral loss. If unpatched, the hack could have resulted in the complete removal of 40,673.89 in ether – currently the only source of collateral – locked in the system. This is currently worth more than $7 million.
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