TronLink now supports user authentication with biometrics, enabling you to manage your assets with enhanced security and convenience. Your unique biological features, such as fingerprints or facial features, are used for identity verification.

Introduction

The following key features are involved in TronLink's biometric authentication:

• Application Lock: With this feature on, you can unlock your TronLink using facial recognition or fingerprint authentication for enhanced security.
• Biometric Payment: With this feature on, you can sign transactions using facial recognition or fingerprint authentication.

Please note that all biometric data collected is stored locally on your device. To keep it secure and private, TronLink has no access to this information.

How to enable biometric authentication?

1. Prepare your device: Ensure your device has fingerprint or facial recognition data recorded and enabled in your phone’s security settings.
2. Enable the App lock.

• Open TronLink, and navigate to “Me - Security & Privacy”.
• Toggle on the “Application Lock” feature.
• Complete identity verification as prompted.

3. Enable biometric payment.

• Open TronLink, and tap the wallet to go to the wallet details page.
• Toggle on the “Biometric Payment” feature.
• Complete identity verification as prompted.

After these steps are completed, you can use biometric authentication to unlock your wallet or sign transactions.

Where to use biometric authentication?

• Unlock Wallet: Quickly enter TronLink by verifying your identity with fingerprint or face ID.
• Sign Transactions: Conveniently confirm transactions such as transfers through secure biometric verification.

FAQs

Q1: Is biometric authentication secure enough?

• Yes. Your biometric data is encrypted by your device’s operating system and stored locally. No third parties, including TronLink, can access this information. Additionally, biometric authentication helps prevent unauthorized users from performing high-risk operations with your accounts.

Q2: What are the dos and don’ts for biometric authentication?

When using biometric authentication, please note the following guidelines:

• 1. The current device must be your personal device;
• 2. Keep only limited balances in this App;
• 3. Do not use this device to store major assets.
• Make sure to back up your password even after enabling biometric payment. If forgotten, restore requires resetting the wallet with your mnemonic or private key.
• Biometric security standards vary by phone model, please use this feature with caution. TronLink is not responsible for any loss caused by device-related security weaknesses.

Q3: Why does the biometric payment setting only apply to the current wallet?

• TronLink isolates biometric payment controls by individual wallets to better protect your assets and privacy.
• When you enable biometric payment for a specific wallet, it does not affect other wallets in the same TronLink App.

Q4: Why can’t I use biometric authentication?

If biometric authentication of your TronLink does not function properly, check the following prerequisites:

• Biometric authentication is enabled in your phone’s settings, with valid fingerprint or facial recognition data recorded.
• The biometric sensor on your phone is clean and unobstructed.
• Biometric authentication is enabled in TronLink settings.
• You’re using the latest version of TronLink. If all prerequisites are met and the issue persists, try disabling and re-enabling the biometric feature in TronLink.

Q5: How can I unlock my wallet or sign transactions if biometric authentication fails?

A5: In this case, you can use your wallet password instead.