Ultimately, on your lost/stolen/damaged device, you must have created a Recovery Password in MySudo settings and then performed a backup in order to recover the original MySudo account again.
The password will unlock your MySudo security keys which gives the App access to your account from a new device.
If you DID NOT create a Recovery Password in MySudo settings before performing a backup, and you have lost, damaged, or replaced your device, you will not be able to access your original MySudo account and data.
Due to the secure nature of the app, not even we have access to your account. So please ensure you create a Recovery Password, retain your password in safekeeping, and then perform a device backup.
* The only other backup/restore option without a required Recovery Password, is an iOS Encrypted iTunes backup.