I have spoken with a number of traders and quite a few are concerned that their brokers will or may have stolen valuable strategies. In trading, our strategies are our most vital strengths. It is for this reason that many top traders shy away from posting good information on these boards. With the exception of their closest trading buddies, only their brokers know of their strategies and trade histories. This information is very valuable to a dishonest principle who wishes to capitalize on strategies that it's most profitable traders make large quantities of money from. If these strategies are employed in situations where there isn't a lot of liquidity, the profit potential will be quickly arbed away and the strategy will become worthless. Even, worse, if this dishonest principle shares the trading strategies with others, or worse, teaches them to other traders at the firm, the strategy will be arbed away, no matter how liquid the situation is. After having spoken to a few people, and having heard other stories, I have grown to believe that there is a massive potential for abuse of the trader/firm privaleges. I was wondering if anyone here believes that they have had certain strategies comprimised by prop or retail firms. The people who I've spoken to have used certain strategies for long periods of time before going prop, and have then had the strategy "mysteriously" stop working after joining a prop firm after a long period of massive success. They have been led to believe that their strategies have been canabilized by the prop firms. They can think of no other reason for the strategy to abruptly stop within a month or 2 of joining a prop. I was just curious if others thought this was a serious problem, or would like to share any suspicions or stories.