"Using a blank password (or no password at all) makes your computer more secure because Windows XP accounts, that are not protected by a password, cannot be accessed remotely over the network or the Internet.
You have to be physically infront of the computer in order to get in. Due to this default behavior, it is better to leave a blank password assigned to an XP account rather than assigning a weak, easily guessed password"
I'd like to understand:
How can I reproduce exactly the same protection but with non-blank password?