Cornerstone is HSI's initiative to detect and close weaknesses within U.S. financial, trade and transportation sectors that can be exploited by criminal networks. Law enforcement entities share criminal typologies and methods with businesses and industries that manage the very systems that terrorists and criminal organizations seek to exploit. This sharing of information allows the financial and trade community to take precautions in order to protect themselves from exploitation. In return, ICE receives information to more thoroughly investigate these complex and sophisticated criminal schemes.