Scratch

So a couple years ago I worked a lot on hidden sprites and other basic exploits of Scratch.  I came up with today, my first day back to scratch in forever, a way to protect hidden sprites.  To learn about hidden sprites go:
http://wiki.scratch.mit.edu/wiki/Hidden_Sprites
Now, most people will do things to reveal the sprite.  This method HIDES the sprite even if it has been revealed.  First, go to where it say 'Sprite 1' and change it to say " ".  Yes, single spaces are recognized as names in Scratch.  Now that your name is hidden the next step is to hide the sprite itself.  This step is just as easy as the first.  Go into the paint editor and click the darkest shade of gray in the color grid.  Paint bucket onto your sprite and boom, your done.  Now when someone tries to reveal your sprite it will still be invisible.  Now this method is not foolproof as some people may still find your sprite.  It is just another way to keep your hidden sprites safer.