There are two ways to backup your wallet:
1. Export the keystore
Switch to the "Profile" tab, select Manage Wallets then select the wallet of your choice
Export keystore --> enter a password --> select a keystore tool --> send (you can also click the copy button to copy the keystore)
2. Export Mnemonic
Switch to "Profile" tab --> Manage Wallets --> Select the wallet
Export Mnemonic --> Enter wallet password
Backup word and click "Next" --> Choose mnemonic to make sure you mnemonic is correct --> confirmNote: Before you remove the wallet make sure you have already backed up.