> HARDdisk security was written to give some protection from
> unauthorised use of your Mac. It is a Control Panel which contains
> INIT code that requests a password before it will allow your machine
> to startup, hence the name HARDdisk security.
>
> Anyone familiar with System 7.X or 8.X will already be thinking they
> can bypass this easily by holding the Shift key down during startup.
> They would be wrong !!
>  HARDdisk security has a facility to disable the shift key during
> Startup, this option can be turned on or off in the Control Panel
> part of the program.
>
> HARDdisk security is not the ultimate in security software and can
> be bypassed by somebody with a reasonable Mac knowledge. It will
> stop casual snoopers. If you need heavy security get [Empower][1] or
> some other commercial product.

\--from the "HARDdisk security Docs" Read Me file

(v1.0.1)

See Also
[PassProof][2]

Compatibility
Architecture: 68k

  [1]: http://macintoshgarden.org/apps/empower-ii-v4x
  [2]: http://macintoshgarden.org/apps/passproof-software