Antoine is currently the Head of Research at Castle. In this role, he focuses on improving Castle's bot detection engine using different approaches, including behavioral detection, and fingerprinting.
⚠️ A quick disclaimer on AI agent management AI agents will clearly change how people interact with websites. They will search,
Prediction markets can give bots a direct financial incentive to manipulate online metrics. TL;DR Prediction markets such as Polymarket
I recently had an ant problem in my apartment. At first, it looked simple. We saw ants coming through the
A few weeks ago, we released an open source list of disposable email domains observed in real abuse activity: https:
Disposable email addresses are a foundational piece of infrastructure for online abuse. Just like proxies help attackers distribute traffic and
You just got a Slack webhook notification. You have 3 new users who created an account on your SaaS: * john.
How we think about research at Castle Bot detection and fraud prevention are adversarial by default. It is a cat-
During an investigation into a large-scale automated account creation attack targeting one of our customers, we observed a burst
In this blog post, we study the Spotify-Account-Checker open source project. The author describes it as: “An automated
At first glance, an email address ending in .eu.org looks trustworthy. It feels institutional, maybe even official. Many people
In my previous post, I showed how LinkedIn detects browser extensions as part of its client-side fingerprinting strategy. That
Modern bot detection rarely deals with obviously fake browsers. Most large-scale automation today runs inside browser instances, with patched
