How to Enable Two-Factor Authentication (2FA) for Your CEX.IO Account

Two-factor authentication (2FA) adds an essential security layer to your CEX.IO account, safeguarding your funds and personal data. By requiring a one-time password (OTP) alongside your login credentials, 2FA significantly reduces the risk of unauthorized access.

Why 2FA Matters for Your Account Security

2FA combats threats like phishing, hacking, and identity theft by introducing a second verification step. This could involve:

• Something you know (e.g., security questions)
• Something you have (e.g., SMS codes or authenticator apps)
• Something you are (e.g., biometrics like fingerprint or facial recognition)

CEX.IO mandates 2FA for withdrawals and strongly recommends enabling it for all account activities. For optimal protection, activate both SMS and authenticator app methods simultaneously.

How to Enable 2FA Using the CEX.IO Mobile App

Step-by-Step Guide:

1. Open the CEX.IO app and log in.
2. Tap the Profile icon (top-left) > Select Security.
3. Choose 2FA with Auth app or SMS verification (or both).

4. For Google Authenticator:

   • Install the app (iOS | Android).
   • Save the secret code securely (critical for backup).
   • Enter the 6-digit OTP from the app to finalize setup.

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How to Enable 2FA via the CEX.IO Website

Using an Authenticator App:

1. Log in to CEX.IO and navigate to Security under your profile.
2. Click Enable next to Authenticator App.
3. Verify via email and scan the QR code using Google Authenticator.
4. Enter the 6-digit OTP to activate.

Via SMS:

1. Follow steps 1–3 above, selecting Text message instead.
2. Enter your phone number and verify the SMS code.
3. Confirm with a Google Authenticator OTP (if both methods are enabled).

Best Practices for 2FA Security

• Backup your secret code: Store it offline to recover access if you lose your device.
• Test both methods: Log out and verify each 2FA option works.
• Update contact details: Ensure your email and phone number are current.

FAQ Section

1. What if I lose my 2FA device?

Use your saved secret code to restore access via a new authenticator app.

2. Can I disable 2FA later?

Yes, but it’s not recommended due to security risks. Navigate to Security Settings to disable.

3. Why isn’t my SMS code arriving?

Check for typos in your phone number or carrier delays. Resend the code if needed.

4. Is 2FA mandatory for all CEX.IO actions?

Currently, it’s required only for withdrawals but advised for all logins.

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