If a device that's been linked to your Snapchat account gets lost or stolen, make sure to “forget” it and unlink it from your account as soon as you can. This protects against unauthorized users gaining access to your account.
To forget a linked device…
- Tap your Profile icon and tap ⚙️ to go to Settings
- Tap ‘Two-Factor Authentication’
- Tap ‘Forget Devices’
- Tap the ✖️ button next to each device that you’d like to forget
- When prompted to confirm, tap ‘Yes’
⚠️Please Note: If you accidentally forget a device, don’t worry! You can re-link it to your account through the same two-factor authentication settings menu.