> For the complete documentation index, see [llms.txt](https://docs.facephi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.facephi.com/docs.facephi-en/products/autenticacion-usuarios-registrados/editor-1.md).

# Product Manual

Cybersecurity solution based on the use of advanced biometrics for fast, accurate, and secure user authentication.

### What is Facephi Authentication?

Our multi-biometric solution helps confirm that users and interactions are genuine, reducing fraud and securing user interactions. It is possible both to authenticate a user (1-1) and to identify them among a group of people (1-N).

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