What Are Passkeys?
Passkeys are cryptographic key pairs stored on your device rather than on a server. Your device holds the private key; the service stores only the public key. Authentication proves possession of the private key through a cryptographic challenge — no password is ever transmitted. Phishing becomes impossible because there's nothing to steal.
How Passkeys Compare to Passwords
Passkeys are resistant to phishing, credential stuffing, and server-side breaches. They're also resistant to keyloggers since nothing is typed. Each passkey is unique to its service, so the reuse problem disappears entirely. They're both more secure and easier to use than passwords.
Current State of Passkey Adoption
As of 2025, major services including Google, Apple, Microsoft, GitHub, and PayPal support passkey authentication. Password managers like Bitwarden and 1Password support passkey storage for cross-device use. Adoption is accelerating rapidly.
What This Means for Your Security Today
Enable passkeys wherever available, especially on high-value accounts. For everything else, strong randomly generated passwords in a password manager remain the correct approach. The transition away from passwords will take years — good password hygiene remains essential throughout.
Passkeys are the future of authentication and worth adopting wherever available. Until the transition is complete, strong random passwords and a good manager remain your best defense.