How to enable SMS authentication on KuCoin? (Security Settings)

Accessing Security Settings on KuCoin

1. Log in to your KuCoin account using your registered email or phone number and password.

2. Navigate to the top-right corner of the homepage and click on your profile icon.

3. From the dropdown menu, select Security Center.

4. Ensure you are on the Account Security tab within the Security Center interface.

5. Scroll down until you locate the SMS Authentication section.

Verifying Your Phone Number

1. Click the Bind button next to SMS Authentication.

2. Enter your full international phone number, including country code (e.g., +1 for United States, +86 for China).

3. KuCoin will send a six-digit verification code via SMS to that number.

4. Input the received code into the designated field within two minutes before it expires.

5. Click Verify to confirm ownership of the number.

Enabling SMS as a Second Factor

1. After successful phone number verification, toggle the switch labeled Enable SMS Authentication.

2. A confirmation modal will appear asking you to re-enter your current account password.

3. Type your password accurately and click Confirm.

4. You will see an immediate status update indicating SMS Authentication is now active.

5. KuCoin may require additional identity verification if your account level is restricted or flagged.

Using SMS During Login and Withdrawals

1. Each time you log in from a new device or browser, KuCoin prompts for the SMS code after entering your password.

2. When initiating cryptocurrency withdrawals, the system sends a real-time SMS code before final submission.

3. The code must be entered within 120 seconds; failure results in automatic cancellation of the withdrawal request.

4. If no signal or network coverage is available, users cannot proceed with the authentication step.

5. Repeated failed attempts trigger temporary lockout of the SMS channel for 15 minutes.

Frequently Asked Questions

Q1. Can I use the same phone number for multiple KuCoin accounts?

A1. No. KuCoin enforces a strict one-number-per-account policy. Attempting to bind the same number to another account triggers an error message.

Q2. What happens if I lose access to my registered phone number?

A2. You must initiate the Account Recovery Process through KuCoin’s official support portal and submit verified identification documents.

Q3. Does SMS authentication work while traveling internationally?

A3. Yes, provided your carrier supports international SMS delivery and your device maintains cellular connectivity. Some regions block short-code messages.

Q4. Is SMS authentication compatible with VoIP numbers like Google Voice or Skype?

A4. No. KuCoin explicitly rejects virtual phone numbers. Only SIM-based mobile numbers issued by licensed telecom operators are accepted.