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From: ephraim@wang.UUCP (pri=8 Ephraim Vishniac x76659 ms1459)
Newsgroups: net.micro.mac
Subject: Re: Making Folders Invisible on HFS
Message-ID: <848@wang.UUCP>
Date: Wed, 30-Jul-86 08:35:43 EDT
Article-I.D.: wang.848
Posted: Wed Jul 30 08:35:43 1986
Date-Received: Thu, 31-Jul-86 21:58:50 EDT
References: <1784@mb2c.UUCP>
Organization: Wang Labs, Lowell MA
Lines: 16

> Is it possible to make a Folder on HFS "invisible"?  If so, how.  This could
> be the start of at least some form of security for hard disk owners -- eg.
> before you power off your machine, you activate a DA that secures the system
> by making all of the highest level folders and documents invisible.  When you
> reboot, the startup application would ask for your password which would be
> stored in an invisible file.  No password, nothing to see.  Even booting up
> with a normal floppy would not appear the desktop.  Sure, I know it can be
> beat, but its a start and would keep novice snoopers away.

Under MFS, you could make a folder "invisible" by putting it inside itself.
(An easy hack with ResEdit, just patch the FOBJ.)  This had no effect on
programs using the files on the disk, because the "folders" were invisible
to applications anyway.  

Might one patch the directory file for an HFS folder so that the folder
is in itself?  How would this "lost" object behave?