Updated March 27, 2025.
Since their introduction, many major technology companies have begun supporting passkeys on their platforms. You may have noticed that when creating a new account or updating your security settings, you sometimes have the option to enable a passkey as a login method. You might wonder whether you should use them. The answer is yes—you should use passkeys whenever possible. They not only make signing into your accounts easier but are also more secure than traditional passwords.
This article explores what passkeys are, how they work, and why they offer a safer alternative to conventional passwords.
What Is a Passkey?
A passkey is a cryptographic login credential that replaces traditional text-based passwords. It consists of two parts: a public key and a private key. The public key is stored by the service you have an account with, while the private key is stored locally on your device—such as your smartphone, computer, or tablet—or within a dedicated authentication application.
When you attempt to log in to an account that uses a passkey, the server sends a challenge to your authenticator. Your device uses the stored private key to sign and respond to this challenge, verifying your identity. On your end, you simply authenticate using your device’s built-in method, such as facial recognition, a fingerprint scan, or a PIN.
Are Passkeys More Secure Than Passwords?
Yes, passkeys are more secure than passwords for several reasons. They are resistant to phishing, inherently support multi-factor authentication, and eliminate common user errors associated with password creation and management.
Phishing Resistance
Phishing attacks often trick users into entering their credentials on fraudulent websites. With passkeys, even if you are directed to a fake site, the authentication process requires interaction with your specific device and private key, which cannot be stolen via a spoofed login page.
Built-In Multi-Factor Authentication
Passkeys combine something you have (your device) with something you are (biometrics) or something you know (a device PIN). This multi-factor approach significantly enhances security without adding complexity for the user.
Reduced Human Error
Users don’t need to create, remember, or type passkeys. This eliminates weak, reused, or easily guessable passwords—common vulnerabilities in traditional authentication systems.
Key Differences Between Passkeys and Passwords
Understanding the distinctions between these two authentication methods can help you make informed decisions about your digital security.
Creation Process
Creating a strong password requires following best practices: using a long mix of character types, avoiding dictionary words, and ensuring uniqueness across accounts. With passkeys, users generate a cryptographic key pair—no manual creation or memorization is needed.
Phishing Susceptibility
Passwords are vulnerable to phishing because users can be tricked into entering them on malicious sites. Passkeys are immune to such attacks, as authentication is tied to the registered device and the specific website’s domain.
Risk of Exposure
Weak or reused passwords are often exposed in data breaches. Even strong passwords can be stolen if the service provider’s server is compromised. With passkeys, only the public key is stored on the server. This key is useless without the corresponding private key, which never leaves your device.
Adoption and Compatibility
Almost every online service supports passwords. Passkeys, however, are still gaining adoption. Major platforms like Google, Apple, Microsoft, Amazon, and PayPal now support them, but many smaller sites do not yet offer passkey authentication.
Enhancing Your Online Security
While passkeys provide superior security, they are not yet universally supported. Therefore, it’s essential to continue using strong, unique passwords for accounts that don’t offer passkey login.
Enable two-factor or multi-factor authentication (2FA/MFA) wherever possible. These measures add an extra layer of security by requiring additional verification beyond your password.
Using a dedicated service can help you manage both passwords and passkeys efficiently. 👉 Explore secure authentication tools to simplify your login experience and enhance your protection.
Frequently Asked Questions
How do I create a passkey?
When signing up for or logging into a supported service, you’ll see an option to create a passkey. Follow the prompts to generate and store the key on your trusted device or in a compatible password manager.
Can I use passkeys on multiple devices?
Yes, but you’ll need a method to synchronize them across devices. Some cloud providers and password managers offer cross-device passkey support.
What happens if I lose my device?
If you lose the device where your passkeys are stored, you can often recover access through a cloud account or a backup method set up with the service, such as a recovery code or alternate login option.
Are passkeys compatible with all browsers and operating systems?
Most modern browsers and operating systems support passkeys, but ensure your software is updated to the latest version for full functionality.
Can I use both a password and a passkey for the same account?
Many services allow you to set up both methods. You can choose to use either for login, though using the passkey is recommended for better security.
Do passkeys work offline?
Passkeys require an internet connection to communicate with the authentication server during login. However, the private key stored on your device does not need internet access to function.
In summary, passkeys offer a more secure and user-friendly alternative to passwords. As technology evolves, they are expected to become the standard for authentication. Until then, combining strong passwords with 2FA/MFA and using a reliable credential manager will help keep your accounts safe.