Ready or not, two-factor authentication is something you’ll need to start thinking more about. This approach to online security, also known as two-step authentication, multi-factor authentication, or just 2FA for short, involves combining a regular password with a secondary numeric code, which you must enter on any device where you haven’t logged in before. This extra code typically gets sent to your phone, so someone who steals your password can’t get into your account unless they have physical access to your phone as well (and know how to unlock it).
The added annoyance and both made 2FA mandatory last year, and it’s on by default for most . I’ve also noticed Amazon selectively enforcing 2FA on it apps and website, sending a link to click on via text message when you login on a new device.
