read only attribute

Giganews Newsgroups
Subject: read only attribute
Posted by:  Not just paranoid (Not just parano…
Date: Mon, 7 Apr 2008

I believe there was a recent Automatic Update loaded to my computer, and
today I noticed that EVERY file and folder on my computer is now set with the
READ ONLY attribute.  Is this somehow considered a good thing for security ?
If this is something to do with a security update, can I disable it ? I
really do have files that I need to change frequently.  If it is not a
security update, is it some sort of weird attack on my computer ?