Markus Gaasedelen
Principal Security Researcher at RET2 Systems, Inc.
Washington DC-Baltimore Area United States
Summary
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Rockstar🎓
Top SchoolMarkus Gaasedelen is a Principal Security Researcher with 11+ years of deep experience breaking and validating trust boundaries from bootrom to browser, combining firmware reverse engineering, hardware fault injection, secure-boot exploitation, and kernel/browser vulnerability research. As co-founder and lead platform researcher at RET2 Systems, he has executed high-impact attacks—dumping AES/OTP keys and defeating measured boot on consumer devices—and built emulation, interposer, and AI-first lab tooling to model and drive complex glitch campaigns. Formerly at Microsoft MSRC, he root-caused hundreds of vulnerabilities and prototyped record-replay debugging for Windows, bridging incident response with reproducible engineering fixes. An active open-source contributor, he maintains tools like Tenet and Lighthouse that improve trace and coverage analysis for reverse engineers, and he’s presented detailed field work (4,000 hours) at RE//verse. Notably, he layers analog and digital side channels with custom emulators to pre-validate fault attacks, marrying hardware ingenuity with software-scale tooling.
11 years of coding experience
9 years of employment as a software developer
Bachelor's Degree Computer Science, Bachelor's Degree Computer Science at Rensselaer Polytechnic Institute
Stackoverflow
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Github Skills (6)
code-coverage10
reverse-engineering10
python10
data-analysis10
cprogramming-language9
c-language9
Programming languages (9)
Github contributions (5)
gaasedelen/tenet
Apr 2021 - Sep 2021
A Trace Explorer for Reverse Engineers
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 28 commits, 1 PR in 4 months
Contributions summary:Markus primarily worked on fixing bugs and implementing new features related to the Tenet trace explorer. They addressed issues in the trace reader and segment processing, improving the tool's stability and accuracy. Furthermore, the user added experimental register highlighting functionality to enhance the user interface and aid in reverse engineering analysis. The user also implemented cell views and made some cleanup.
execution-traceida-protraceidareversing
gaasedelen/lighthouse
Feb 2017 - Oct 2021
A Coverage Explorer for Reverse Engineers
Role in this project:Back-end & Reverse Engineer
Back-end & Reverse EngineerContributions:12 releases, 510 commits, 41 PRs in 4 years 8 months
Contributions summary:Markus's contributions center around reverse engineering, specifically focused on creating and developing a code coverage tool named Lighthouse. The commits demonstrate the implementation of a parser for the DrCov coverage log format, indicating a focus on data analysis. The user has also been involved in designing and integrating key features of the lighthouse plugin into IDA, with a focus on visual representations and data analysis tools.
sarifida-probinary-ninjaidacoverage
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