Name: JA3/JA4+ hashes: A "Secret" Fingerprint Identifying Bots and Scrapers
Start: 2026-04-23T10:40:00+0200
End: 2026-04-23T11:05:00+0200

It is an annual, community-driven information security conference held in Prague. The event provides a platform for cybersecurity professionals, enthusiasts, and researchers to share knowledge, exchange ideas, and discuss the latest trends in the field. It’s a unique opportunity to connect with like-minded individuals, expand professional networks, and stay informed about the ever-evolving cybersecurity landscape.
More info at www.bsidesprg.cz

JA3/JA4+ hashes: A "Secret" Fingerprint Identifying Bots and Scrapers

Thursday April 23, 2026 10:40 - 11:05 CEST

Lucerna Cinema - AUX

The internet is full of bots and some aren't nice (DDoS, scraping, exploits, AI..). To block bots, we must identify them in the traffic. That's hard as some pretend to be human/browsers! Let's explore JA3 (and their successor JA4+) hashes - a lesser-known method based on the client TLS capabilities.

Speakers

Miloslav Homer

Lead Application Security Architect, Sandoz

I am a defender, a hacker, a tinkerer. My focus is on application security, linux (vim FTW), and python. Coming from a cryptography background, I managed to up my tech skills, practiced pentesting, and completed OSCP. I switched to the protective side, currently working in security... Read More →

Thursday April 23, 2026 10:40 - 11:05 CEST
Lucerna Cinema - AUX Vodičkova 704 /36/110 00, 110 00 Nové Město

talk

Security BSides Prague 2026

Miloslav Homer

Attendees (59)

Get help with the event

Security BSides Prague 2026

Miloslav Homer

Attendees (59)

Sign up or log in to save this to your schedule, view media, leave feedback and see who's attending!

Get help with the event