Ledger Authenticator descripción
*** This application requires the Ledger Nano/Unplugged Bitcoin hardware wallet ***
You can now use the Ledger Wallet companion app with your Nano/Unplugged to get better second factor authentication user experience. When sending a transaction with your Nano, your smartphone will be pushed with a visual verification. You'll have the opportunity to verify amount and payment address: the transaction will be sent to the network only upon your confirmation.
To enable this new second factor, your Android smartphone must be paired using your Nano's security card.
*** Note about required permissions ***
CAMERA: needed to scan the pairing QR code
GET_ACCOUNTS: needed to receive a push notification when a transaction is pending validation