What is Two-Factor Authentication?
The central concept of two-factor authentication (also called multi-factor authentication) is that you must login to a server using both something you know (your password) and something you have (your phone). This prevents an unauthorized person who knows your password from impersonating you unless they also have your phone.
At Preact, all of our employees and contractors have been using TFA for a long time but now it's available to our customers to enable on an individual basis as well.
Step 1 - Login and go to the My Account page by clicking on the user icon in the top left of the screen.
You'll see an Enable Two-Factor Authentication at the bottom of the page.
Once you've scanned the code, you should verify all is configured by typing the current token into the textbox on the page. Until you do this, Two-Factor is not enabled.
After that is completed, you'll see a message that Two-Factor is enabled and next time you login you'll be prompted to enter your token. It will look like this:
If you're logging in from a trusted devices (your work computer, for instance) you can check the Remember box and you won't be prompted to enter the token every time you login. You will be occasionally re-prompted however.