Passwords are a pain. We choose simple words that are easy to remember, but equally easy for hackers to guess.
Yet we still forget them. And they also get stolen with alarming frequency.
The reported theft of 1.2 billion email passwords by Russian hackers earlier this month was just the latest in a long string of major password security breaches that have led some people to wonder if the use of passwords should be abandoned.
But what are the alternatives?