Decentralized Digital Identity (DID) is a model that enables individuals and organizations to manage their identity autonomously, without relying on a single centralized provider. It is based on technologies such as blockchain or distributed ledgers, which ensure the verification and authenticity of digital credentials without intermediaries.
Because it provides a more secure and trustworthy way to authenticate users, customers, and partners. Organizations can verify credentials in real time without storing sensitive personal data, reducing the risk of fraud and exposure to cyberattacks. It also helps support compliance with data protection regulations such as the GDPR.
A key example is the European Digital Identity Wallet (EU Wallet), promoted by the European Union, which will allow citizens and businesses to access public and private services using a secure digital identity recognized across all member states. In practice, DID is already used to sign digital contracts, manage access to financial services, and ensure identity traceability in online transactions.