Being able to sync codes across devices helps when you need to migrate everything over.
By Jack Peachey Nov. 8, 2026 10:00 am EST Ascannio/Shutterstock Add Engadget on Google: Google DiscoverA two-factor authentication (2FA) app like Google's Authenticator can be a huge step toward safer online security, adding an extra layer of account protection. However, it can also be a massive bugbear when it comes to changing devices — especially if your authenticator app is stuck on a damaged or lost phone. Luckily, you can transition to a new machine smoothly.
