Passkeys are built on the FIDO2 standard (CTAP2 + WebAuthn standards). They remove the shared secret, stop phishing at the source, and make credential-stuffing useless.
But adoption is still low, and interoperability between Apple, Google, and Microsoft isn’t seamless.
I broke down how passkeys work, their strengths, and what’s still missing
You could also use dedicated hardware to store your keys. Any FIDO USB key will do. I have a Yubikey that cost me less than 30 bucks.
It’s really handy, because I frequently use someone else’s device for work. All I have to do is plug it in, press the button on the key and enter the master password for the passkey storage. It’s like having a password manager on a USB stick.