Money laundering is the illegal process of hiding the origin of money obtained through criminal activities (like drug trafficking, fraud, or corruption) by making it appear as if it came from legitimate sources. Criminals typically move the money through multiple bank accounts, businesses, or investments to “clean” it. For example, if someone earns money from illegal drug sales and then deposits it into a fake business, such as a restaurant, to show it as regular business income, that process is considered money laundering.