> For the complete documentation index, see [llms.txt](https://jp.support.backpack.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jp.support.backpack.exchange/qu-yin-suo/sekyuriti/2fawosuruniha.md).

# 二段階認証（2FA）を設定・変更するには？