That somebody will steal your encoded system from a server and ruin the market?
Think about it on the other side.
Suppose somebody came to you and said, "hey I have this great black box system. let's trade it in massive size!"
--- Uh, where did it come from?
--- My friend is uber-hacker and works in IT of a broker and transferred it out on his USB keychain
--- How does it work?
--- I dunno.
--- What are the risk parameters?
--- I dunno.
--- What are the weaknesses and strengths in various kinds of market conditions?
--- I dunno.
--- What does backtest look like and with what data feed?
--- I dunno.
Would you buy a used car from this man?