Nowadays, online security becomes more and more important. The number of online identity thefts, stolen passwords, hacked accounts is increasingly growing. However, not a lot of people know the basics of how to keep your accounts safe.
What 2-factor authentication does is adding a second step to log in. Even if your password gets stolen, hackers won't be able to log in without the security code dynamically generated on your trusted device. It's very simple for you to use, but makes it impossible for others to log in to your accounts even if they have your password.