CNN - What to do with passwords once you create them
CNN reports: "Password management isn't sexy but it's a problem that touches everyone who touches a computer. Not only are people forced to create new passwords at a dizzying level as they join social networks, do e-commerce and deal with frequently expiring passwords at work, but there are new and novel password theft methods all the time."

Comment: Missionaries operating in unfriendly countries would do well to secure their computers with the methods mentioned in this report from CNN.