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?).
> how do I log in on a device that I don't own?
This is solved by passkey-implementing software and devices (with Bluetooth) allowing you to log in with a QR code (Webauthn via CTAP hybrid transport). iOS and Android support this, and it’s generally not a locked-down thing if other devices wanted to do it too.
The only use case left is in “how do I login if all my devices are stolen/fall into a body of water” in which there really isn’t an answer beyond “get (a|your) device back, sign back into your password manager, use that to get back into critical accounts”.
They're cheap enough if you lose one it's not the end of the world. Goes on your keyring. Doesn't require esim management. Use NFC swipe/usb-plug-in + pin to use.
The problem isn't the cost of replacing it, the problem is - how do you log in when all your passkey-bearing devices just got flushed down the toilet?
How is that different from accidentally deleting your keepass database? Or forgetting your password? I think it’d be easier for me to forget than find myself trying to flush all my hw tokens…
> Also... Is flushing your whole keys down the toilet a problem you run into often?
It's a potential catastrophe I'd like to avoid if possible, but the catastrophe is not inherent to any other key I have.
House key: Make new copy for 10 USD. Alternatively, get a locksmith to unlock the door and change the lock. Even more alternatively, break a window or door. I still get into my house.
Car key: Make a new copy for >10 USD. Alternatively, call roadside assistance and get them to tow me somewhere I can get a new key. More inconvenient, still very possible.
TOTP 2FA and passwords: Password databases can be backed up, and so can TOTP seeds. It's inconvenient to do so, but I can at least still just leave copies around everywhere I can, so that it's extremely unlikely that I'll be completely locked out.
Yubikey: Making copies is literally impossible, so I'll need to buy two or three keys from the get go, and get them all out every time I need to add a new key. This is a huge inconvenience that no casual user will ever do (they might do 3-2-1 if it was set-and-forget, but Yubikeys aren't). If I don't do this, I lose permanent access to my accounts. There is no safety valve built in to the system. If I lose my key, I'm fucked.
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?).
judge2020 · · focus · HN ↗
This is solved by passkey-implementing software and devices (with Bluetooth) allowing you to log in with a QR code (Webauthn via CTAP hybrid transport). iOS and Android support this, and it’s generally not a locked-down thing if other devices wanted to do it too.
The only use case left is in “how do I login if all my devices are stolen/fall into a body of water” in which there really isn’t an answer beyond “get (a|your) device back, sign back into your password manager, use that to get back into critical accounts”.
esseph · · focus · HN ↗
They're cheap enough if you lose one it's not the end of the world. Goes on your keyring. Doesn't require esim management. Use NFC swipe/usb-plug-in + pin to use.
pavel_lishin · · focus · HN ↗
remix2000 · · focus · HN ↗
pavel_lishin · · focus · HN ↗
esseph · · focus · HN ↗
Telaneo · · focus · HN ↗
It's a potential catastrophe I'd like to avoid if possible, but the catastrophe is not inherent to any other key I have.
House key: Make new copy for 10 USD. Alternatively, get a locksmith to unlock the door and change the lock. Even more alternatively, break a window or door. I still get into my house.
Car key: Make a new copy for >10 USD. Alternatively, call roadside assistance and get them to tow me somewhere I can get a new key. More inconvenient, still very possible.
TOTP 2FA and passwords: Password databases can be backed up, and so can TOTP seeds. It's inconvenient to do so, but I can at least still just leave copies around everywhere I can, so that it's extremely unlikely that I'll be completely locked out.
Yubikey: Making copies is literally impossible, so I'll need to buy two or three keys from the get go, and get them all out every time I need to add a new key. This is a huge inconvenience that no casual user will ever do (they might do 3-2-1 if it was set-and-forget, but Yubikeys aren't). If I don't do this, I lose permanent access to my accounts. There is no safety valve built in to the system. If I lose my key, I'm fucked.