How to enable Face ID login on MEXC? (Biometric Security)

Face ID Integration in MEXC App

1. The MEXC mobile application supports Face ID authentication exclusively on iOS devices running iOS 11 or later, provided the device is equipped with TrueDepth camera hardware — including iPhone X and all subsequent models.

2. Face ID login operates entirely within the secure enclave of the device; biometric data never leaves the iPhone and is not transmitted to MEXC servers or third-party infrastructure.

3. Activation requires prior setup of a system-level Face ID profile on the device, which must be completed before any app-specific authorization can take effect.

4. Once enabled, Face ID replaces password entry during standard login flows and also applies to sensitive actions such as fund withdrawals and security setting modifications.

5. The feature functions independently from Google Authenticator or SMS-based two-factor authentication, serving as a local biometric layer rather than a networked verification method.

Step-by-Step Face ID Activation for MEXC

1. Install the official MEXC app from the App Store under the developer name “MEXC Global Pte. Ltd.” — avoid third-party distribution channels to ensure integrity of biometric integration.

2. Launch the app and log in using your registered email or phone number along with your account password.

3. Navigate to the account settings section, then select “Security Center” to locate biometric options.

4. Toggle on the “Face ID Login” switch; the system will immediately prompt for a live facial scan to bind the current session to your enrolled identity.

5. Confirm successful activation by logging out and re-entering the app — the interface will display a Face ID icon and automatically initiate scanning upon launch.

Device-Level Prerequisites

1. Ensure your iPhone has a configured lock screen passcode, as Face ID functionality depends on this foundational security layer.

2. Verify that “Face ID & Passcode” is enabled in iOS Settings and that at least one face has been successfully enrolled through the native setup wizard.

3. Check that “iPhone Unlock” and “Other Apps” toggles are both active under the Face ID settings menu — MEXC falls under the “Other Apps” category.

4. Confirm ambient lighting conditions meet Apple’s requirements: avoid direct backlighting, extreme low-light environments, or obstructive accessories like thick-framed glasses or heavy makeup during enrollment.

5. Clean the TrueDepth camera array regularly using a microfiber cloth to prevent dust or smudges from interfering with infrared dot projection accuracy.

Security Behavior During Transactions

1. When initiating a withdrawal, MEXC triggers Face ID verification before broadcasting the transaction to the blockchain — no signature proceeds without successful biometric confirmation.

2. Repeated failed attempts trigger a progressive lockout: three unsuccessful scans disable Face ID login for the app for 60 seconds; five failures require manual password re-entry.

3. Face ID does not authorize private key export or seed phrase exposure — those operations remain restricted to password + GA workflows only.

4. If the device undergoes a full iOS restore or Face ID profile reset, MEXC’s biometric binding is invalidated and must be re-enabled manually post-reauthentication.

5. The app respects iOS privacy controls — disabling Face ID globally in system settings instantly revokes MEXC’s access without requiring app uninstallation or account reset.

Frequently Asked Questions

Q1: Does MEXC store my facial data on its servers?No. MEXC never receives, processes, or stores raw biometric templates. All matching occurs locally inside the Secure Enclave.

Q2: Can I use Face ID if I wear glasses or have facial hair changes?Yes. Modern Face ID models adapt to gradual appearance shifts including eyewear, beard growth, and aging — though drastic alterations may require re-enrollment.

Q3: Why does Face ID fail when I hold my phone sideways?Face ID requires vertical orientation during authentication. Holding the device horizontally disables the TrueDepth sensor array’s active flood illuminator and dot projector alignment.

Q4: Is Face ID supported on jailbroken iOS devices?No. Jailbreaking compromises the Secure Enclave’s integrity. MEXC explicitly blocks biometric login on detected non-certified firmware environments.