Leszek Miś
Founder Trainer Principal Cyber Security Threat Expert
Gmina Wilkowice, Śląskie, Poland
Summary
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SeniorLeszek Miś is a founder and principal cyber security threat expert with nearly 20 years of hands-on experience building open-source defensive solutions, running adversary emulation labs, and training blue and red teams across Europe and the US. He blends deep OS and network forensics knowledge with practical engineering—authoring PurpleLABS curricula and custom C2 infrastructures while deploying SIEM analytics and detection stacks like Wazuh, HELK, Velociraptor and Zeek. His career traces the full infosec lifecycle from Linux system developer and admin to penetration tester, DFIR practitioner and SOC architect, giving him a rare ability to find blind spots that tools alone miss. A recognized conference speaker and long-time OSS researcher, he pairs non-vendor technical rigor with business-focused automation of adversary simulation and detection. Off-hours he reverse-engineers IoT devices for fun, a habit that keeps his threat hunting and malware analysis skills sharp.
10 years of coding experience
9 years of employment as a software developer
Github Skills (29)
linux10
rootkit10
blueteam10
attack-defense10
vagrantfile7
netfilter5
high-speed5
vagrant5
packer4
osquery4
ansible4
share-extension4
powershell4
information-security3
nfv3
Programming languages (4)
Github contributions (5)
cr0nx/awesome-linux-attack-forensics-purplelabs
Feb 2023 - Feb 2023
This page is a result of the ongoing hands-on research around advanced Linux attacks, detection and forensics techniques and tools.
Contributions:33 commits, 29 pushes, 1 branch in 4 days
linuxattack-defenseblueteamdetectiondfir
cr0nx/msf-payload-in-axfr
Mar 2019 - Mar 2021
Contributions:2 commits, 1 push, 1 branch in 2 years
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