Whether it's a secret recipe, a well-honed sales funnel, specially-designed technology or something else; most companies have an "it" factor that sets it apart from the competition. You likely put in years of hard work and invested significant financial resources to perfect what you do. You must be proactive in making sure that your trade secrets don't end up in the wrong hands.
When partners are about to start a business, they're excited about what they're planning to accomplish. Just like most relationships, though, there's a point at which all the euphoria dissipates. It's often after that honeymoon period is over that cracks in the foundation start to emerge. Conflicts with your business partner can get heated fast.