> For the complete documentation index, see [llms.txt](https://whitepaper.bc.game/bc-white-paper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.bc.game/bc-white-paper/appendix/general-terms-and-conditions/registration-and-login.md).

# Registration and Login

You must be at least 18 years old to register. When adding your email address, please ensure it is accurate as it will be needed for KYC account verification later.

You can log in at any time. For enhanced security, we recommend adding Two-Factor Authentication (2FA). Learn more about setting up Google Authenticator.

Unfortunately, we are unable to update registered email addresses. If you need to change your username and/or registered email, we advise you to close your current account and create a new one.


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