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About me

I am Björn Ruytenberg, a security researcher specializing in hardware, firmware, and OS security. My research interests mainly include various aspects of x86-64 platform security, such as OS internals, BIOS (UEFI), hypervisors, and PCI Express, as well as sandboxing technology in widely deployed enterprise products. Part of my work includes Thunderspy, a collection of critical security vulnerabilities affecting Intel Thunderbolt technology. Outside of work, I enjoy sharing my findings as a speaker at Black Hat USA, Chaos Communication Congress, and other venues.

Currently, I am a PhD candidate at VUSec, Vrije Universiteit Amsterdam. In addition, I hold an MSc in Computer Science and Engineering (cum laude) from TU/e. My master thesis, entitled "When Lightning Strikes Thrice: Breaking Thunderbolt Security", received the Best Cybersecurity Master Thesis Award in The Netherlands. Before that, I obtained a BSc in Electrical Engineering and a BSc in Computer Science (cum laude) from Fontys.

Please feel free to contact me by email at bjornbjornwebnl (PGP), Twitter (@0Xiphorus), Mastodon (@0Xiphorus@infosec.exchange), or LinkedIn.

Talks

Security vulnerabilities

I report security vulnerabilities whenever I find them. Some selected vulnerabilities are listed below:

Blog

My blog is a collection of writeups on some security vulnerabilities I've found. Here are the most recent entries:

Projects

My profile on GitHub is where I publish projects I've been working on. Some projects you might find interesting:

Teaching

Previously, I have been a teaching assistant for the following courses:

Please refer to the Canvas course pages to access the full course material.