# Antoine Vastel

**Fingerprint harvesting in the bot ecosystem**  
Published  April 22, 2026  
This report uncovers how bot ecosystems harvest and reuse real browser fingerprints, including signals from commercial anti-bot systems, to scale realistic impersonation. These fingerprints are becoming operational assets, enabling more efficient and harder-to-detect automation. The implication is clear: detection systems must assume replay and treat client-side signals as untrusted.

**BotmasterLabs: Powering an Era of Spam**  
Published  March 23, 2026  
How XRumer and XEvil scaled forum spam by combining automation, CAPTCHA solving, and brittle fingerprinting.