What is a Passkey?
A passkey replaces your password with a cryptographic key pair - one kept secret on your device, one held by the service. Here's how it works.
How Passkeys Work
How passkey registration and sign-in actually work, step by step: key pairs, challenges, signatures, and the domain check that stops phishing.
What is FIDO2?
FIDO2 is the open standard behind every passkey, built from WebAuthn and CTAP2. What it covers, and why Seedkeeper PRO is FIDO2 Level 1 certified.
What is WebAuthn?
WebAuthn is the browser API that lets a website ask your device for a cryptographic signature instead of a password. Its role in every passkey login.
Passkey vs Password
Passkeys vs passwords compared across phishing, breaches, reuse and recovery - including the two points where passwords still win.
Passkey vs OTP
One-time codes add a second factor; passkeys replace the password. Why OTP is still phishable, and why you will want both on one device.
Are Passkeys Safer?
Yes - passkeys eliminate phishing, breach exposure and reuse. The honest answer also covers what they don't fix and where the weak point now sits.