# Internet Identity

[**Internet Identity**](https://identity.ic0.app/) is a secure, privacy-preserving, and user-friendly authentication system designed for the Internet Computer ecosystem. It enables users to access decentralized applications (dapps) safely and anonymously. Below are the key features of Internet Identity:

* **Passwordless Login**: Rather than relying on traditional usernames and passwords, Internet Identity leverages *passkeys* cryptographic pairs of public and private keys. Users can authenticate using biometrics like fingerprint (TouchID) or facial recognition (FaceID), or through hardware security devices such as YubiKeys and Ledger wallets.
* **Privacy by Design**: A unique pseudonym is generated for each dapp a user interacts with, preventing cross-app tracking and significantly boosting privacy.
* **Fully Decentralized and Secure**: Internet Identity runs entirely on the Internet Computer blockchain. This decentralized infrastructure allows users to inspect and verify the code, enhancing both transparency and security.
* **Seamless Cross-Device Access**: Users can create an *identity anchor* and link multiple devices, allowing easy access to dapps from various platforms without handling complex cryptographic details.
* **No Personal Data Collection**: Unlike conventional authentication systems, Internet Identity does not request or store any personal identifying information from users.
* **WebAuthn Support**: Built on the WebAuthn standard, Internet Identity is compatible with most modern browsers and operating systems, ensuring broad and reliable support.