Draft:Stuart McClure
American cybersecurity executive and author
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Stuart McClure is an American cybersecurity executive and author. He co-authored Hacking Exposed: Network Security Secrets & Solutions (1999) with Joel Scambray and George Kurtz,[1] a book on network security that went through seven editions and was inducted into the Cybersecurity Canon Hall of Fame.[2] He co-founded Foundstone, a cybersecurity consulting firm acquired by McAfee in 2004, and later co-founded Cylance, an AI-based endpoint security company acquired by BlackBerry for approximately US$1.4–1.5 billion in 2019.[3][4]
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Stuart McClure | |
|---|---|
| Alma mater | University of Colorado |
| Occupations | Entrepreneur, author, cybersecurity executive |
| Known for | Co-author of Hacking Exposed, co-founder of Cylance, co-founder of Foundstone |
| Children | 4 |
| Website | stuartmcclure |
Early life and education
McClure studied at the University of Colorado.[5] He later settled in Irvine, California.
In February 1989, while a passenger on United Airlines Flight 811, McClure survived an explosive decompression event over the Pacific Ocean in which nine passengers were killed.[5] He has said the experience shaped his later focus on prevention in cybersecurity.[5]
Career
Foundstone and early work
In 1992, McClure started a small IT services company called Computerese in Palm Desert, California.[citation needed] He later worked as a technology journalist for InfoWorld during the late 1990s, writing a regular security-focused column.[citation needed]
In 1999, he co-founded Foundstone, a cybersecurity consulting and vulnerability management firm, where he served as president and CTO.[1] That same year he co-authored the first edition of Hacking Exposed with Scambray and Kurtz. The book sold over one million copies across seven editions[2] and spawned several related titles, including Web Hacking: Attacks and Defense (2003, with Scambray) and three editions of Hacking Exposed Windows (2001–2007, with Scambray).
During his time at Foundstone, McClure was granted a patent for automated network vulnerability detection and reporting (U.S. patent 7,152,105, 2006).[6] McAfee acquired Foundstone in 2004.
McAfee (2004–2012)
Following the acquisition, McClure joined McAfee as Global Chief Technology Officer and General Manager of Risk & Compliance. He remained with the company after Intel acquired McAfee for $7.8 billion in 2010, departing in 2012.
While at McAfee, he was involved in the company's public reporting on Operation Aurora, a cyberattack attributed to Chinese state-sponsored actors that targeted Google and other companies,[citation needed] and on Operation NightDragon, a separate McAfee investigation into alleged intrusions targeting energy and petrochemical firms.[citation needed]
Cylance (2012–2019)
McClure co-founded Cylance in Irvine, California in 2012. The company used machine learning models to detect malware on endpoints before execution, a different approach from the signature-based methods dominant at the time. In 2014, Cylance published a report on what it called Operation Cleaver, which it attributed to Iranian state-sponsored actors targeting critical infrastructure.[7]
BlackBerry acquired Cylance in February 2019.[3] McClure left BlackBerry in September of that year.
Later ventures
After leaving BlackBerry, McClure founded NumberOne AI, an AI-focused incubator, in 2021, which raised $13 million.[8] He also served as CEO of Qwiet AI, an application security company,[citation needed] and founded Wethos AI in 2024.[citation needed]
Congressional recognition
Cylance's work has been referenced in several U.S. congressional documents, including a 2012 House hearing on cybersecurity threats,[9] a House Committee on Homeland Security report from the same year,[10] a House Oversight Committee report on the Office of Personnel Management data breach,[11] and a 2017 Senate hearing on emerging cybersecurity technologies.[12]
Patents
McClure holds nine U.S. patents. His foundational patent (U.S. patent 7,152,105, 2006) covers automated network vulnerability detection and reporting, with five continuation patents in the same family granted through 2013.[6] He also holds patents related to application execution control using ensemble machine learning (U.S. patent 10,235,518, 2019; U.S. patent 10,817,599, 2020) and multiclass malware classification (U.S. patent 11,657,317, 2023).
Selected bibliography
- McClure, Stuart; Scambray, Joel; Kurtz, George (1999–2012). Hacking Exposed: Network Security Secrets & Solutions (1st–7th ed.). McGraw-Hill.
- McClure, Stuart; Scambray, Joel (2003). Web Hacking: Attacks and Defense. Addison-Wesley. ISBN 0201761769.
- Scambray, Joel; McClure, Stuart (2001–2007). Hacking Exposed Windows (1st–3rd ed.). McGraw-Hill.
Personal life
McClure lives in Irvine, California with his family.


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