[artursapek]

I love my Yubikey! I use it with all my Google accounts.

[salibhai]

Any benefit to Yubikey over Authenticator? EDIT: good points here: https://bitcointalk.org/index.php?topic=159444.0

[microtonal]

This is old. They old Yubikeys with HOTP provided some advantages over authenticator, but new Yubikeys provide U2F which is much more resilient against phishing attacks.

https://www.yubico.com/applications/fido/

Moreover, U2F does not present itself as a USB keyboard (which had security implications on X11, since every application can listen in on keyboard events.)

[rogeryu]

So what happens when you lose that?

[microtonal]

You can associate multiple U2F keys with one Google account. Buy two, put one in a safe. They only cost ~15 Euro a pop.