The ‘Trusted Computers’ tab shows those computers which you have marked as trusted and therefore do not require multifactor authentication. To view your Trusted Computer settings, launch your Account Settings and click ‘Trusted Computers’:
Doing so adds the computer to the ‘Trusted Computers’ list and ensures that you will not be prompted to enter multifactor authentication the next time you log in. These steps must be completed on every device that you want to mark as trusted.
You can disable a trusted computer at any time by clicking ‘Toggle’ next to the entry or delete the entry entirely by selecting ‘Delete’.