# Concepts

- [Digital Identity and Why It's Important](/concepts/digital-identity.md)
- [Digital Wallets](/concepts/digital-wallets.md)
- [Ecosystems](/concepts/ecosystems.md)
- [Information Security](/concepts/information-security.md)
- [Personal Data & Attributes](/concepts/personal-data-and-attributes.md)
- [Privacy- and Security-by-design](/concepts/privacy-and-security-by-design.md)
- [Secure Data Storage](/concepts/secure-data-storage.md)
- [Selective Disclosure / ZKP](/concepts/selective-disclosure.md)
- [Tokens and Tokenisation](/concepts/tokens-and-tokenisation.md)
- [Verifiable Credentials](/concepts/verifiable-credentials.md)
- [Terminology](/concepts/terminology.md)