Bithumb Index

User Guide
Change / find security passcode
  •   Have you forgotten your security passcode?

    The security passcode is the 4-digit numerical password entered after the 1st login.
    Document submission is necessary to find the security passcode.

    ① Photo of yourself holding your passport
       : Please take a photo of your face alongside your passport.
       : Please attach a memo on the passport with your name and photo date (document submission date).

    • A temporary security passcode will be sent to your email once the evaluation is complete.

      Would you like to change your security passcode?

    Security passcode change is possible from ‘Security Center’. 

    ① Enter the current security passcode.
    ② Set the new security passcode.
    ③ Complete mobile phone authentication. 


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