> For the complete documentation index, see [llms.txt](https://pnpt.adot8.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pnpt.adot8.com/external-pentest-playbook/concluding-the-external-pentest/attestation-letters.md).

# Attestation Letters

## Overview

 An **Attestation Letter** is essentially just a letter saying that you performed the penetration test. It can be a copy paste document from the [**Executive Summary**](/report-writing/findings-report.md#executive-summary)**.** The client will usually use it to give to an auditor or some kind of board showing they got a penetration test done

## Example

<figure><img src="/files/7ZMfxAB47pjcSMYJGQt6" alt=""><figcaption><p>TCM Security Example</p></figcaption></figure>