---
id: 518
title: "Burp Sequencer 101"
source_domain: portswigger.net
source_url: "https://portswigger.net/blog/burp-sequencer-101"
published_at: "2008-05-28T22:11:00Z"
tags: ["burp-suite", "statistics", "portswigger", "session-tokens", "burp-sequencer", "entropy"]
phying_url: "https://phying.com/item/518"
lang: en
---

# Burp Sequencer 101

## Summary

A plain-language explanation of Burp Sequencer: how bits of effective entropy are computed per bit position, and what the significance level means when judging whether session tokens are random.

## Intelligence Metadata

- **Sources:** portswigger.net
- **Published:** 2008-05-28T22:11:00Z
- **Original:** https://portswigger.net/blog/burp-sequencer-101
- **Phying News:** https://phying.com/item/518