Just saw this. TheDAO is like a piece of Swiss cheese lol 
And it's only going to get worse from here on in.
Its not just the DAO, but Ethereum in general.
http://vessenes.com/ethereum-contracts-are-going-to-be-candy-for-hackers/
http://hackingdistributed.com/2016/06/16/scanning-live-ethereum-contracts-for-bugs/