The trail of information a person's online actions leave behind is referred to as their "digital footprint." It consists of interactions with websites, purchases made online, browser history, and postings made on social media. As they can be tracked, recorded, and possibly used to track or analyse a person's online behaviour, digital footprints can have long-term repercussions. It's crucial to be careful with the information you disclose and to think about how it could affect your reputation and privacy.
Example
John, an avid social media user, regularly posts updates about his personal life, shares photos, and comments on various platforms. His digital footprint includes all these activities, which can be traced back to him. Potential employers may review his online presence, impacting their perception of his professionalism and character.