Although details are still appearing, Sophos is reporting that a particular combination of circumstances can result in FileVault passwords being exposed in plain-text log files. The combination is somewhat unlikely — the Mac had to be using FileVault 1 under Mac OS X 10.6 Snow Leopard, be upgraded to 10.7 Lion, and then updated to 10.7.3, all without switching to FileVault 2. Nevertheless, if this applies to you, change that password! follow link
How to Change a Bunch of Fetch Shortcut Passwords Quickly
Do you have a dozen - or more - Fetch shortcuts that all use the same password? Did that password just change? If you can manage a simple AppleScript, you can use this one to change all the passwords at once.
set password of shortcut "my shortcut" to "my new password"
Visit Fetch Softworks
FileVault Passwords Potentially Logged in Plain Text