
Introduction
Passkey authentication is a modern, secure, and user-friendly alternative to traditional passwords. Instead of typing a secret string of characters, a passkey uses cryptography and the built-in authentication methods of your device, such as your fingerprint, face recognition, or a PIN, to verify your identity.
These passkeys are based on the FIDO (Fast IDentity Online) standards and consist of a unique cryptographic key pair: a public key stored with the website or service, and a private key securely stored only on your device (like a phone or computer). This setup makes them highly resistant to common threats like phishing, as the private key never leaves your device and cannot be guessed or intercepted like a password.
Enable Passkey Authentication in MailboxValidator
This process is significantly faster and eliminates the need to remember complex passwords or use two-factor authentication codes. Because the passkey is tied to your physical device and requires a local bio-metric or PIN confirmation, it offers a much stronger defense against remote hacking attempts and credential theft than traditional passwords, marking a major step forward in online security.
- Log in to your MailboxValidator dashboard.
- Go to Profile then the Passkey Authentication section.
- Click “Turn On Passkey Authentication”.
- Your browser should prompt you to save the passkey. Follow the on-screen instructions.
Note: Note: The exact prompts or options may vary depending on your device and system settings. - Once activated, you can sign in securely using your device’s fingerprint, face recognition, or PIN — no password required. The next time you log in, simply confirm your identity on your device, and you’re in.
Login With Passkey Authentication
After enabling Passkey Authentication, logging in to your MailboxValidator account will require one more step:
- Click the “Sign In with Passkey” button.
- Enter your email address and continue.
- Your browser will prompt you for Passkey authentication. Choose your preferred authentication method — such as fingerprint, face recognition, or device PIN — to complete your sign-in.
- Once verified, you’ll be logged in instantly without needing to type a password. It’s a faster, safer, and more convenient way to access your account.
How to Disable Passkey Authentication
If you wish to disable Passkey Authentication, follow these steps:
- Log in to your MailboxValidator dashboard.
- Go to Profile then the Passkey Authentication section.
- Click on “Turn Off Passkey Authentication”.

Once disabled, your account will return to the standard password-based sign-in method. You can re-enable passkey authentication at any time for a faster and more secure login experience.