This is tutorial on how to activate Two-Factor Authentication for LinkedIn Mobile App. Activation Steps On LinkedIn - Click on your photo icon on the top left corner - click on settings Go to account - Two-step Verification Click on the blue ‘Set up’ button - Choose your preferred verification method from the drop down - then click on ‘continue’ Now, to verify your ask to add 2FA to your LinkedIn account you will be asked to confirm the change by adding your LinkedIn password.