Brand parasitism refers to the unethical practice of a company or individual exploiting the reputation and success of an established brand for their own gain, without permission or authorization. This can include using similar logos, slogans, or packaging to deceive consumers into thinking they are purchasing a product from the original brand. It is a form of intellectual property infringement and can damage the credibility and profitability of the legitimate brand. Brand parasitism not only harms the original brand, but also deceives and cheats consumers, making it a harmful and unethical business tactic.