'A securities litigation attorney is a litigation attorney who handles lawsuits and adversarial proceedings involving stocks, corporations and alleged securities fraud. A securities litigation attorney might be on either side of the case - representing plaintiff shareholders who claim they were defrauded in violation of securities laws or defending the corporation against whom the lawsuit is filed. Some securities litigation attorneys represent corporate executives in cases such as embezzlement or accounting fraud. Many securities litigation attorneys are involved in class action cases that involve numerous plaintiffs and complicated analysis of securities disclosure and fraud laws. Defense-oriented securities litigation attorneys sometimes defend clients in civil lawsuits, but they also represent corporate clients in criminal securities fraud investigations initiated by securities regulators such as the Securities and Exchange Commission.