Gordon Lyon
Founder And CTO at Nmap Software LLC
Bellevue, Washington, United States
Summary
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RockstarGordon Lyon is the founder and CTO of Nmap Software LLC and the lead author of the widely used open-source Nmap Security Scanner, a project he has been developing and distributing since 1997. Based in Bellevue, WA, he also leads development of Npcap and licenses core network discovery technology to commercial partners. He runs several security-focused websites (nmap.org, SecLists.org, SecTools.org, insecure.org, SecWiki.org) that serve as essential resources for the infosec community. His work blends deep protocol-level engineering with practical tooling for network discovery and packet capture, and many commercial products quietly embed his technology. Despite a lean public GitHub footprint, his decades-long stewardship of Nmap and associated projects reflect sustained, high-impact open-source leadership and a commitment to accessible security tooling.
11 years of coding experience
Github Skills (85)
xapi10
probe10
windows10
xmake10
port-scanning10
traceroute10
haiku10
security10
transmission10
lua10
libuv10
ack10
network-tools10
assetbundle10
group-policy10
Programming languages (3)
Github contributions (5)
nmap/npcap
Mar 2016 - Oct 2022
Nmap Project's Windows packet capture and transmission library
Contributions:1 release, 66 commits, 2 PRs in 6 years 8 months
nmaptransmissionwindowsnetwork-toolspacket-capture
nmap/nmap
Jan 2015 - Feb 2025
Nmap - the Network Mapper. Github mirror of official SVN repository.
Contributions:3 PRs, 286 comments, 190 issues in 10 years 3 months
unicornsprobeservicenowsifthaiku
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