Passkeys do marginally improve security against MITM and phishing attacks, but they are primarily for protecting the lowest common denominator from themselves: people who re-use passwords and/or don't use a password manager.
If you use multiple devices throughout the day, registering passkeys in all of these systems becomes a big headache with O(m*n) complexity, so putting the passkeys in a password manager is the only realistic solution. But this still breaks the login flow for a very common use case: how do I log in on a device that I don't own? With a password in a password manager I at least have the option of manually typing the password.
The biggest problem, though, is how users are pushed into it without any warning or knowledge of what they're signing up for. I've accidentally set up passkeys just by clicking an okay button a few times in the past and had to go back and figure out how to undo it after being blocked from login on another computer (which computer was I on again?).
My MIL setup a passkey accidentally on her Google account and now has no idea where it is. Removing it now requires her password which she’s also forgotten. But now for some reason on Google I can’t initiate any type of forgot your password flow because of how Google sets up things and I have zero clue where she stored the passkey.
I for sure don't. Websites only know there is a passkey associated with my account, and the OS only knows there might be one on the device, or maybe on another device, and offers me options to check here or do a Bluetooth/QR Code dance, and when all of them fail, I'm no closer to knowing where the damn passkey is.
drtz · · focus · HN ↗
If you use multiple devices throughout the day, registering passkeys in all of these systems becomes a big headache with O(m*n) complexity, so putting the passkeys in a password manager is the only realistic solution. But this still breaks the login flow for a very common use case: how do I log in on a device that I don't own? With a password in a password manager I at least have the option of manually typing the password.
The biggest problem, though, is how users are pushed into it without any warning or knowledge of what they're signing up for. I've accidentally set up passkeys just by clicking an okay button a few times in the past and had to go back and figure out how to undo it after being blocked from login on another computer (which computer was I on again?).
HaloZero · · focus · HN ↗
UltraSane · · focus · HN ↗
TeMPOraL · · focus · HN ↗
I for sure don't. Websites only know there is a passkey associated with my account, and the OS only knows there might be one on the device, or maybe on another device, and offers me options to check here or do a Bluetooth/QR Code dance, and when all of them fail, I'm no closer to knowing where the damn passkey is.