Most companies view handing intellectual property to an outsourcer as delivering the castle keys to marauders. Outsourcers need access to customer names, automated business processes, and their clients’ homegrown software to do their jobs. But unscrupulous contractors can also do a job on clients. Businesses such as Apple Computer and Pearl Investments, a Portland, Maine–based hedge fund, have sued their service providers for revealing company secrets or for using client systems for their own gain.