Electronic commerce, also known as e-commerce, involves buying and selling of products or services over electronic systems such as the internet. It allows consumers to shop online 24/7 from anywhere in the world with an internet connection. Common forms of e-commerce include business-to-business transactions, online shopping sites, and online marketplaces where multiple sellers can list products. While e-commerce provides greater convenience and selection for consumers, it also poses risks such as online fraud that are less common with traditional in-person retail transactions.