# Passkey Authentication

Set up passwordless sign-in with passkeys for faster, more secure access.

### What Are Passkeys?

Passkeys are a modern, passwordless way to sign in to your WEIR account. Instead of typing a password or waiting for an email code, you authenticate using your device's built-in security features like Face ID, Touch ID, or Windows Hello.

Passkeys are more secure than passwords because they can't be phished, reused, or stolen in data breaches.

### Benefits of Passkeys

- **Faster Sign-In**: One tap or glance instead of email codes
- **More Secure**: Resistant to phishing and data breaches
- **Biometric Protected**: Uses your fingerprint or face to verify you
- **Device-Bound**: Stays on your device, never shared

### Setting Up a Passkey

You can set up a passkey during account creation or add one later:

#### During Sign-Up

1. Complete the email verification step
2. When prompted to "Set up passkey for faster sign-in," click Continue
3. Your browser will prompt you to create a passkey
4. Use Face ID, Touch ID, or your device PIN to confirm
5. Your passkey is now registered

#### After Sign-Up

1. Go to Settings → Security
2. Find the "Passkeys" section
3. Click "Add Passkey"
4. Follow your browser's prompts to create the passkey
5. Give your passkey a memorable name (e.g., "MacBook Pro")

**Tip:** You can register multiple passkeys from different devices for convenient access anywhere.

### Signing In with a Passkey

1. Go to the WEIR sign-in page
2. Enter your email address
3. If a passkey is available, you'll see "Sign in with passkey"
4. Click it and authenticate with your biometric
5. You're signed in instantly

**Note:** If your device doesn't have your passkey, you can still sign in using the email magic link as a fallback.

### Device & Browser Requirements

Passkeys work on modern devices and browsers that support WebAuthn:

- **Apple:** Safari on macOS Ventura+ or iOS 16+ with Face ID/Touch ID
- **Android:** Chrome on Android 9+ with fingerprint or screen lock
- **Windows:** Edge or Chrome on Windows 10+ with Windows Hello
- **Cross-device:** Some browsers support using your phone to authenticate on desktop

Older browsers or devices without biometric capabilities may not support passkeys. You can always use email sign-in as a fallback.

### Managing Your Passkeys

View and manage registered passkeys in Settings → Security:

- **View:** See all registered passkeys with device names and creation dates
- **Rename:** Update passkey names for easier identification
- **Remove:** Delete passkeys you no longer need or from lost devices

**Lost Device?**  
If you lose a device with a passkey, sign in via email on another device and remove the lost device's passkey from your security settings.

### Troubleshooting

#### "Passkey not available" error

Your browser may not support passkeys, or your device lacks biometric hardware. Try updating your browser or using email sign-in.

#### Passkey creation fails

Ensure your device's biometric system is set up and working. On iPhone, check that Face ID/Touch ID is enabled. On Mac, verify Touch ID is configured in System Settings.

#### Can't find my passkey on a new device

Passkeys are device-specific unless synced via iCloud Keychain (Apple) or Google Password Manager (Android). Register a new passkey on each device you use.