Grzegorz Tworek
Sr Technical Specialist at Microsoft
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolGrzegorz Tworek is a senior technical specialist and second-generation IT professional with over two decades of hands-on experience in Windows security, incident response, and team leadership. He has built and led security teams across finance, healthcare, and consulting, including roles as CISO and Malware Security Lead Engineer before joining Microsoft. A prolific toolsmith and back-end security engineer, his open-source PSBits repository demonstrates deep low-level Windows forensics and credential-extraction tooling used by practitioners. Recognized more than 15 times as a Microsoft MVP, he also has a track record of translating technical investigations into real-world impact, from disrupting criminal activity to enabling remediation. Based in Warsaw, he combines practitioner-level offensive/defensive skills with advisory experience at CyberArk and enterprise-scale program delivery. Notably, he has been writing, blogging and speaking about Microsoft security since the 1990s, shaping community knowledge long before many modern tooling ecosystems existed.
7 years of coding experience
24 years of employment as a software developer
AGH University of Krakow
Polish, English, Spanish, Russian, French
Github Skills (12)
c1710
powershell10
ws-api10
reverse-engineering10
c1110
winapi10
computer-forensics10
wp-api10
security10
registers9
ntfs9
system-programming8
Programming languages (5)
Github contributions (5)
gtworek/PSBits
Jun 2019 - Jan 2023
Simple (relatively) things allowing you to dig a bit deeper than usual.
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:7 reviews, 516 commits, 21 PRs in 3 years 7 months
Contributions summary:Grzegorz primarily contributed to the development of tools focused on security and digital forensics within the Windows environment. Their contributions include the creation of scripts and code examples that extract sensitive information such as passwords, and insights into security event logs. They also developed tools that interact with the operating system at a low level.
windowsdeeperdigcsharpbit
persistence-info/persistence-info.github.io
Jul 2022 - Jan 2023
Contributions:1 review, 196 commits, 12 PRs in 6 months
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