---
id: 248
title: "PortSwigger at Black Hat & DEF CON 33"
source_domain: portswigger.net
source_url: "https://portswigger.net/blog/portswigger-at-black-hat-amp-def-con-33"
published_at: "2025-07-08T09:17:21Z"
tags: ["black-hat", "conference", "def-con", "request-smuggling", "portswigger", "http1-must-die"]
phying_url: "https://phying.com/item/248"
lang: en
---

# PortSwigger at Black Hat & DEF CON 33

## Summary

PortSwigger returns to Black Hat USA and DEF CON 33 with the HTTP/1.1 Must Die message, new desync attack classes, a DEF CON workshop on advanced smuggling exploitation, and community events.

## Intelligence Metadata

- **Sources:** portswigger.net
- **Published:** 2025-07-08T09:17:21Z
- **Original:** https://portswigger.net/blog/portswigger-at-black-hat-amp-def-con-33
- **Phying News:** https://phying.com/item/248