Digital identity refers to the information and characteristics that define an individual or entity on the internet. This includes personal information such as name, address, date of birth, and contact details, as well as online persona and behavior such as social media profiles, online purchases, and browsing history. Digital identity is important in the digital age as it is often used for authentication, authorization, and access control in online transactions and interactions. It can also be used to personalize user experiences, provide targeted advertising, and protect against identity theft and fraud. Research in digital identity focuses on understanding how individuals and entities manage and control their digital identities, the impact of digital identity on privacy and security, and the development of technologies and policies to effectively manage and protect digital identities. This research area is interdisciplinary, drawing on fields such as computer science, psychology, sociology, and law.