Bithumb Index

Reset security password
How to reset your security passcode

If you can’t login because you have lost the security passcode,
we will send you a temporary passcode through email or SMS after verifying the attached documents.※ It takes about one day to have them reviewed.

Collection and Use of Personal Data (Required)
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Member Type
Name
Registered account
Mobile number
  • Supported Image Format: JPG, PNG, GIF File Size Limit: 5MB
  • The maximum file size is 5MB.

Instructions for taking a photo of your ID

① Attach a written note with your name and the date the picture was taken to your ID card.
② Please cover the last 7 digits of your resident registration number and driver's license number and passport number.
③ Take the picture so that your ID and your face are clearly visible.

ID

- South Korean citizens: Resident registration card, driver’s license, or passport
- Foreigners: Passport

notes of attention

- Examination will be rejected if the resident registration number, driver's license number, or passport number is disclosed in full. Please black out your personal information.
- Examination will be rejected if the photo has been taken before the submission date or an application form without a memo.
- Copies or screen captures of your ID will not be authenticated.
- Submitted materials will only be used for untact verification of your real name. Documents will be immediately discarded upon rejection of examination.

Instructions for taking a photo of your ID

① A corporate member uses the business license of the company and the ID card of its representative as the source of proof.

② Attach a written note with your name and the date the picture was taken to your ID card.
③ Please cover the last 7 digits of your resident registration number and driver's license number and passport number.
④ Hold your ID card and your business license and take a picture. Make sure they are clearly visible along with your face.
※ The pictures will be used strictly for verification purposes only.

ID

- Corporate member: Business license and ID card of the representative (South Korean citizens: Resident registration card, driver’s license, or passport / Foreigners: Passport)

notes of attention

- Examination will be rejected if the resident registration number, driver's license number, or passport number is disclosed in full. Please black out your personal information.
- Examination will be rejected if the photo has been taken before the submission date or an application form without a memo.
- Copies or screen captures of your ID will not be authenticated.
- Submitted materials will only be used for untact verification of your real name. Documents will be immediately discarded upon rejection of examination.