I see that many people have already complained about Itunes' backup encryption. I NEVER set a password for it (and the corresponding option is still unticked, as always) yet it asked me for a pwd when I upgraded my 3GS to the 5.0 OS. How to solve this?

Question

I see that many people have already complained about Itunes' backup encryption. I NEVER set a password for it (and the corresponding option is still unticked, as always) yet it asked me for a pwd when I upgraded my 3GS to the 5.0 OS. How to solve this?

Answer 1

To prevent others from reading your mail, don't give them access to your account. If others need to use your computer for some reason, set up personal accounts, or a guest account, and switch to it before allowing them access. This is the simplest, and most effective, method.
Email message files can be read as plain text in TextEdit or any word processor.
To protect your email messages from being viewed by others while in your account, you would have to lock the folder, putting it into an encrypted disk image that required a password to be opened and mounted. You would have to double-click on the image and give your password to mount it before launching Mail then unmount it as soon as you're done. My guess is that you could replace the ~/Library/Mail folder with an alias pointing to the folder on the disk image.
It may work, but it seems like a lot of unnecessary hassle.