> For the complete documentation index, see [llms.txt](https://docs.vida.id/identity-stack/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vida.id/identity-stack/verify/liveness.md).

# Liveness

VIDA leverages advanced **AI and ML algorithms** to create a passive liveness method that **analyses a physically present human being** and distinguishes it from a spoof artifact that may be present in a single-shot image. This method improves your conversion by having less friction in the capture experience and ensures that the person undergoing verification is physically present during the process and not using a pre-recorded image or video.

The purpose of liveness detection is to prevent fraud and impersonation, providing a higher level of security and protection to the verification process. 

<figure><img src="/files/3hS6HH8RFIPJtIDed7WC" alt=""><figcaption></figcaption></figure>