Ok I may sound a little paranoid. But nobody that trades an automated strategy can tell me this thought has never crossed your mind. If you have an account with an all-around services provider such as Tradestation and depend on them for automated trading, is it ever possible that they can read your strategy code (since clearly their software is on your computer) and then duplicate it in a system somewhere else? Of course your account and strategy would have to be a winner to the point of being an attention grabber.