Investors often entrust securities companies to trade securities such as stocks and funds on their behalf. However, in life, securities companies or their staff will go out of cheating customers in order to get commissions, which seriously damages the legitimate interests of investors. When investors find this situation, they should resolutely take up legal weapons to safeguard their own interests and pursue the legal responsibility of the responsible person. According to the provisions of the Securities Law, securities companies and employees cheat customers, including: (1) buying and selling securities for customers against their entrustment; (2) Failing to provide the customer with a written confirmation document of the transaction within the specified time; (3) misappropriating securities entrusted by clients or funds in clients' accounts. (4) buying and selling securities in customers' accounts without permission, or buying and selling securities under the guise of customers; (5) Inducing customers to buy and sell unnecessary securities to earn commission income; (6) Providing or disseminating false or misleading information to investors through the media or other means; (7) Other behaviors that violate the true meaning of customers and harm the interests of customers. When an investor discovers that a securities company or its employees have customers and commit fraud against customers, he can pursue the responsibility and demand compensation in the following ways: 1, and negotiate. It is the best and fastest way to settle disputes by negotiation between investors and securities companies on compensation. 2. Entrust a lawyer to negotiate. Compared with ordinary investors, lawyers have obvious advantages in negotiation experience and legal knowledge. Investors hiring lawyers will put pressure on illegal brokers, which is conducive to the recovery of rights protection. 3. Go to court to sue for compensation. This is the last and most effective way to protect rights when investing. If negotiation fails, it is suggested that a lawyer should be invited to the court as soon as possible to defend his rights. However, it should be noted that investors must pay attention to the collection and preservation of relevant evidence when making claims. Litigation is evidence, and they need sufficient evidence if they want to win in court proceedings. If there are difficulties in collecting evidence, court proceedings, etc. You can also consult a professional economic dispute lawyer first, and then make a decision to formulate the most reasonable claim for rights protection.