The term "digital footprint" refers to the trail of data individuals leave behind while using the internet. This includes information like browsing history, social media interactions, and online transactions. There are two types: active footprints, where users intentionally share data, and passive footprints, created without direct input, such as tracking cookies. Understanding one’s digital footprint is essential for managing online privacy and reputation. Individuals and businesses must be mindful of their digital presence, as it can impact personal privacy and brand perception.