About Gordon Lyon
Born 1953. Gordon Lyon is an American engineer, software developer, writer, hacker and computer scientist, known for Nmap.
Gordon Lyon (also known by his pseudonym Fyodor Vaskovich) is an American network security expert, creator of Nmap and author of books, websites, and technical papers about network security. He is a founding member of the Honeynet Project and was Vice President of Computer Professionals for Social Responsibility.
Personal life Lyon has been active in the network security community since the mid-1990s. His handle, "Fyodor", was taken from Russian author Fyodor Dostoyevsky. Most of his programming is done in the C, C++, and Perl programming languages.
Opposition to grayware In December 2011, Lyon published a post criticizing the fact that Download.com started bundling grayware with their installation managers and expressing concerns users confusing Download.com-offered content for software offered by original authors; he accused them of using deception as well as copyright and trademark violation.
Conferences Lyon has presented at DEFCON, CanSecWest, FOSDEM, IT Security World, Security Masters' Dojo, ShmooCon, IT-Defense, SFOBug, and other security conferences.
Websites
Lyon maintains several network security web sites: Nmap.Org β Host of the Nmap security scanner and its documentation SecTools.Org β The top 100 network security tools (ranked by thousands of Nmap users) SecLists.Org β Archive of the most common security mailing lists Insecure.Org β His main site, offering security news/updates, exploit world archive, and other misc. security resources
Published books
Know Your Enemy: Revealing the Security Tools, Tactics, and Motives of the Blackhat Community, co-authored with other members of the Honeynet Project. Stealing the Network: How to Own a Continent, co-authored with Kevin Mitnick and other hackers. Nmap Network Scanning
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Important facts
People in Gordon Lyon's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Gordon Lyon's
Frequently asked questions
Who is Gordon Lyon?
American network security expert, open source programmer, writer, and a hacker
When was Gordon Lyon born?
Gordon Lyon was born in 1953 in California.
What is Gordon Lyon's occupation?
Gordon Lyon is an engineer, software developer, writer, hacker and computer scientist.
What is Gordon Lyon known for?
Gordon Lyon is known for Nmap.
What nationality is Gordon Lyon?
Gordon Lyon is American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Gordon Lyon. https://biography.guide/gordon-lyon/
MLA: "Gordon Lyon." Biography.guide, https://biography.guide/gordon-lyon/.
Chicago: "Gordon Lyon." Biography.guide. https://biography.guide/gordon-lyon/.
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