Data breaches that compromise people's usernames and passwords have become so common, and used in crime for so long, that millions of stolen credential pairs have actually become practically worthless to criminals, circulating online for free. And that doesn't even begin to scratch the surface of the more current credentials sold on the black market. All of this means that it's increasingly difficult to keep track of which of your passwords you need to change.

Learn about your ad choices: dovetail.prx.org/ad-choices