Roelof Temmingh
Urgh. OK then.... Roelof Temmingh has worked in cybersecurity and Open-Source Intelligence (OSINT) for more than 25 years. Trained as an engineer (B.Eng, 1995), he began his career in IT security and penetration testing, co-founding SensePost, one of the early security consultancies, which later became part of Orange Cyberdefense.
He went on to start Paterva, the company that created Maltego, widely used for data visualization and relationship mapping in OSINT investigations. More recently, he founded Vortimo, a tool for improving web research workflows, and is currently building Ubikron, which focuses on applying AI to investigation and intelligence tasks.
Over the years, Roelof has given talks and training in many countries, sharing practical approaches to security and OSINT. He is known for creating tools that emphasize usability and real-world application rather than hype.
Session
When was a webpage created?
BetaMeta is a free and open-source research tool designed to answer that question by combining multiple forensic techniques into a single workflow. From parsing HTML for multi-format embedded timestamps and comments, to inspecting SSL certificate chains, EXIF data of images, sitemap histories, server headers, and archive captures, the tool triangulates the likely “birth date” of a web page.
This session shows how BetaMeta works under the hood and demonstrates how journalists, investigators, and researchers can use it to place online content into context. Whether the challenge is disinformation, fraud investigations, or historical web research, the aim is to reverse entropy on the web and recover what time has effectively redacted.
We will also spend a few minutes on the journey of building the tool by vibe coding, before closing with a live demo on real pages that should deliver some surprising results.