> For the complete documentation index, see [llms.txt](https://docs.baasid.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.baasid.io/authorization-based-on-blockchain/key-point-and-technology-of-authentication-2fa-and-mfa.md).

# Key point & Technology of Authentication / 2FA & MFA

BaaSid protects your data with a multi-layered security solution.

<figure><img src="https://4159522092-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FDYrkUeB2VQm1KK5ea6bi%2Fuploads%2FJ8kSRUopQ4xtawGyxnI8%2Fimg10.png?alt=media&amp;token=ecbac06c-a9ac-4cc4-b62e-e2ff33571bba" alt=""><figcaption><p>Blockchain service that shows other limitations of centralization</p></figcaption></figure>