It's difficult to fathom how a list of the 20 most popular dog names could have evolved into a potential tool for identity theft. Such, however, is an oddity sprung upon us by the challenges of online password management. When you register for an account on the Web site of a financial institution (or other secured site) today, you are often required to register answers to a series of personal questions, sometimes referred to as "life questions." These questions--familiar to many of us--support a form of emergency authentication. When you lose or forget your password, the Web site prompts you to answer one or more of the life questions you have registered...