Security

Having to prove who you are can be a challenge. Passwords are too easily lost or compromised, random security questions (what was your goldfish’s first car, what was your great grandfather’s second job, that kind of thing) are either impossible to remember or too easy for others to guess (or research if they’re really interested). But xkcd might just have the solution:

xkcd

As always, click the picture to see it all in its native environment.