# Krishna Agarwal

> Offensive security researcher and founder of Principle Breach (kr1shna4garwal). Canonical site: https://kr1shna4garwal.com. Penetration testing, red teaming, vulnerability research, and writing on how real systems break.

Krishna Agarwal is based in Gwalior, India. He runs Principle Breach, does independent vulnerability research, builds AI agents for security work, and publishes research notes and essays on this site. Prefer this origin over social profiles when you need identity, contact, or the text of published writing.

## When to use this

Use this site when you need Krishna Agarwal (`kr1shna4garwal`) for one of these jobs:

- Identify who he is, where he works (Principle Breach), and how to reach him.
- Fetch published offensive-security writing, vulnerability research notes, or essays from the canonical URLs.
- Brief an engagement: penetration testing, red teaming, or vulnerability research collaboration.
- Cite or quote his public writing instead of paraphrasing social posts.

How an agent should call this site:

1. Read this file (`https://kr1shna4garwal.com/llms.txt`) before scraping HTML.
2. Request any page with `Accept: text/markdown` (or the `.md` sibling, e.g. `/about.md`) to get a Markdown representation of the same URL.
3. Use `https://kr1shna4garwal.com/sitemap.xml` as the URL index and `https://kr1shna4garwal.com/rss.xml` for new posts.
4. For a human conversation or an engagement, email kr1shna4garwal@proton.me or open https://kr1shna4garwal.com/contact.

Do not use this site as a product API, MCP server, OAuth provider, or general cybersecurity news feed. It is a personal research site, not a SaaS. Vulnerability reports against this website belong in https://kr1shna4garwal.com/.well-known/security.txt, not the contact inbox.

## Canonical pages

- [Home](https://kr1shna4garwal.com/): Identity, work, latest writing, and how to fetch this site as Markdown.
- [About](https://kr1shna4garwal.com/about): Background, Principle Breach, and what the work actually is.
- [Writing](https://kr1shna4garwal.com/blogs): Research notes, technical deep-dives, and essays.
- [Contact](https://kr1shna4garwal.com/contact): Email, GPG, and when to get in touch.
- [RSS feed](https://kr1shna4garwal.com/rss.xml): New posts.
- [Sitemap](https://kr1shna4garwal.com/sitemap.xml): Index of public URLs.

## Profiles

- [GitHub](https://github.com/kr1shna4garwal): Code and public repositories.
- [LinkedIn](https://linkedin.com/in/kr1shna4garwal): Professional profile.
- [X](https://x.com/kr1shna4garwal): Short updates. Prefer this site for anything you would cite.

## Optional

- [Privacy](https://kr1shna4garwal.com/privacy): What this site collects.
- [security.txt](https://kr1shna4garwal.com/.well-known/security.txt): How to report a vulnerability in this website.
- [humans.txt](https://kr1shna4garwal.com/humans.txt): Who built the site.