Content & Talks

Conference talks, blog posts, and academic research on bot detection, browser fingerprinting, and fraud prevention.

Blog Posts & Writing

Castle Blog ↗

My latest writing on bot detection, fraud prevention, and account security.

DataDome Blog ↗

Technical articles on bot detection, fingerprinting, and web security from my time as VP of Research at DataDome.

My own platform sharing insights on how I gather data and how it can be leveraged to detect fraud and bots. Covers browser fingerprinting, disposable emails, temporary phone numbers, and proxy detection.

Conference Talks

Are Your Devices Part of a (Legal) Botnet? Using ML to Detect Residential Proxy IPs ↗

Black Hat US 2023

Leveraging Streaming-Based Outlier Detection and SliceLine to Stop Heavily Distributed Bot Attacks ↗

Black Hat Asia 2023

Bot or Human? Detecting Malicious Bots with Machine Learning ↗

OWASP 2021

Academic Research

PhD Thesis

Tracking Versus Security: Investigating the Two Facets of Browser Fingerprinting

Université de Lille, 2019 — Supervisors: Prof. Romain Rouvoy and Prof. Walter Rudametkin

Google Scholar

Full list of publications

Note: this profile hasn't been updated in a while. See below for a more complete list.

Selected Publications

FP-Crawlers: Studying the Resilience of Browser Fingerprinting to Block Crawlers ↗

A. Vastel, W. Rudametkin, R. Rouvoy, X. Blanc

MADWeb'20 - NDSS Workshop on Measurements, 2020

FP-Scanner: The Privacy Implications of Browser Fingerprint Inconsistencies ↗

A. Vastel, P. Laperdrix, W. Rudametkin, R. Rouvoy

USENIX Security 2018

FP-STALKER: Tracking Browser Fingerprint Evolutions ↗

A. Vastel, P. Laperdrix, W. Rudametkin, R. Rouvoy

IEEE Symposium on Security and Privacy (S&P) 2018

FP-TESTER: Automated Testing of Browser Fingerprint Resilience ↗

A. Vastel, W. Rudametkin, R. Rouvoy

IEEE European Symposium on Security and Privacy Workshops 2018