Over the holiday weekend, I experienced the ultimate computer security mechanism:
I was using my new Dell Latitude E6420 to do some network reconfiguration when the machine started acting weird with regard to the network.
Since this machine runs Windows 7, I decided to just reboot it to clear the network configuration.
After I restarted the machine I was asked for a password by the BIOS.
The odd thing was … I never set a BIOS password.