When You Should, Shouldn't Give Out
Your Social Security Number

Your Social Security number is one of the keys to your financial health. It's a unique indentifier lenders use to assess your creditworthiness. It's also exactly what a would-be thief needs to apply for a credit card, mortgage, car loan or job in your name.

If you're like most Americans, it's also something you give out all too frequently.

"As with so many procedures in the business world, your Social Security number is something that many companies ask for, so no one really questions it," says James Van Dyke, president of Javelin Strategy & Research, a research firm that tracks financial services topics. "But giving out your Social Security number is definitely a practice consumers should think twice about."

Case in point: A recent Javelin Strategy & Research report -- the 2009 ID Fraud Survey -- found that, among identity theft victims, 38 percent said the perpetrator had obtained their Social Security number and used it in the crime. "It's certainly logical to say that you could eliminate 38 percent of your risk of identity theft by limiting access to your Social Security number," says Van Dyke.