Passkey

A passkey is a secure, passwordless login method that uses cryptographic authentication instead of traditional credentials. It enables users to access accounts using biometric data or device-based verification, eliminating the need to remember or store passwords.

How It Works in Practice

Passkeys are stored on a user’s device and use public-private key pairs to authenticate logins. When a login is initiated, the device verifies the user’s identity (e.g., via fingerprint or face ID) and confirms access without transmitting sensitive data over the internet.

Why It Matters for Web3 Security

In the context of crypto and Web3 platforms, passkeys can enhance wallet and exchange security by reducing phishing risks and eliminating password reuse vulnerabilities. They represent a step toward safer, more user-friendly digital identity management.