This chapter explores the proactive fraud investment strategy, focusing on shorting stocks of fraudulent companies. It starts by outlining various investment strategies and motives for shorting stocks, emphasizing the potential profitability of fraud shorting, improving market integrity doing so. The impact of activist short campaigns on stock prices is analyzed, revealing significant drops following fraud allegations. Finally, it outlines the required competencies and personality traits for fraud short investors, as well as the personal risks involved in this strategy.