> For the complete documentation index, see [llms.txt](https://docs.indigoprotocol.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.indigoprotocol.io/resources/audit.md).

# Audit

## Tweag - October 2021

An audit summary can be found by following [this link](https://indigoprotocol1.medium.com/indigo-protocol-tweag-security-audit-report-949b3c359f17).

## MLabs - November 2022

{% file src="/files/kyOlVDQASrXSBkw6HWhH" %}
Indigo Protocol V1 audit report
{% endfile %}

## MLabs - March 2024

An audit of the Indigo Protocol V2.

## MLabs - October 2024

An audit of the Indigo Protocol V2.1. Indigo Protocol V2.1 also had an informal audit from Sundae Labs.

## TxPipe - May 2026

{% file src="/files/926bDouIV4COBcEHSkAY" %}
Indigo Protocol V3 audit summary
{% endfile %}