Tesline-Service SRL, which specializes in computer security
solutions, has updated its Rohos Logon Key for Mac OS X
(http://www.rohos.com/mac-os-x/), an authentication solution, to
version 1.4. The software, which works with Mac OS X 10.4 and higher,
now s X Tiger and Mac OS X Leopard now supports YubiKey, a USB key.

The solution provides a hardware-based authentication that lets you
access your Mac with YubiKey. The Mac is protected, but you don’t
need to enter your password manually each time you unlock your Mac.
You can automatically lock your Mac screen when YubiKey is unplugged.

The Mac Version costs US$29. A 15-day demo is available for download.