Passkeys are a next-generation authentication method that replaces traditional passwords with biometric or device-based verification. This guide explains what passkeys are and how to start using them.

What Are Passkeys?

Passkeys are a FIDO (Fast IDentity Online) standard-based authentication method that uses public key cryptography. Instead of memorizing a password, you authenticate using your device’s biometric sensor (fingerprint, Face ID) or PIN. The private key is stored securely on your device and never leaves it, making phishing attacks virtually impossible.

Major platforms now support passkeys. Apple introduced them with iOS 16 and macOS Ventura in 2022. Google added passkey support for Google Accounts in 2023. Microsoft integrated passkeys into Windows 11 and Microsoft accounts. This widespread platform support means you can already use passkeys across most of your devices.

Why Passkeys Are More Secure

Traditional passwords have fundamental security weaknesses: they can be guessed, stolen through phishing, intercepted in transit, or leaked in data breaches. A 2024 Verizon report found that 80% of data breaches involved compromised credentials.

Passkeys eliminate these risks entirely. Since the private key never leaves your device, there is nothing for attackers to steal. Each passkey is cryptographically bound to a specific website or app, so phishing attacks that trick you into logging into a fake site simply will not work. Even if a service provider’s server is breached, the stored public key is useless to attackers without the corresponding private key on your device.

How to Start Using Passkeys

Using passkeys is straightforward. When you log into a supported service, you will see an option like “Create a Passkey” or “Use Passkey.” After selecting it, your device will prompt you to authenticate with Face ID, Touch ID, or your system PIN. Once created, subsequent logins only require biometric verification—no passwords to type or remember.

Your passkeys sync across your devices through your platform’s cloud service. Apple passkeys sync via iCloud Keychain, Google passkeys via Google Password Manager, and Microsoft passkeys via Windows Hello. This means you can create a passkey on your iPhone and use it on your Mac or iPad without any additional setup.

Summary

Passkeys represent a fundamental shift in online security. By eliminating passwords entirely, they remove the most common attack vector for data breaches. Start creating passkeys for supported services today and experience a more secure, convenient login process.