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Clifford Paul "Cliff" Stoll (born June 4, 1950) is an American astronomer, author and teacher.

He is best known for his investigation in 1986, while working as a system administrator at the Lawrence Berkeley National Laboratory, that led to the capture of hacker Markus Hess, and for Stoll's subsequent book The Cuckoo's Egg, in which he details the investigation.

Stoll has written three books as well as articles in the non-specialist press (e.g., in Scientific American) on the Curta mechanical calculator and the slide rule, and is a frequent contributor to the mathematics YouTube channel Numberphile.

Early life and education

Cliff Stoll attended Hutchinson Central Technical High School in Buffalo, New York. He earned a B.S. in Astronomy in 1973 from the University at Buffalo (SUNY). While studying for his undergraduate degree at SUNY Buffalo, Stoll worked in the university's electronic music laboratory and was mentored by Robert Moog.

He received his PhD from the University of Arizona in 1980.

Career

External videos
Booknotes interview with Stoll on The Cuckoo's Egg, December 3, 1989, C-SPAN

During the 1960s and 1970s, Stoll was assistant chief engineer at WBFO, a public radio station in his hometown of Buffalo, New York.

In 1986, while employed as a systems administrator at the Lawrence Berkeley National Laboratory, Stoll investigated a tenacious hacker—later identified as KGB recruit Markus Hess—who stole passwords, pirated multiple computer accounts, and attempted to breach US military security. After identifying the intrusion, Stoll set up a honeypot for Hess by using a non-existent department at the National Laboratory, allegedly cooperating with the US Department of Defense, eventually tracking him down and passing details to the authorities. Stoll spent 10 months trying to track the hacker's whereabouts and eventually managed to do so when a hacker tried to gain access to the computer of a DoD contractor in Virginia. It is recognized as one of the first examples of digital forensics. At the time, gaining cooperation from law enforcement was a challenge due to the relatively new nature of the crime. He described the events of his investigation in The Cuckoo's Egg: Tracking a Spy Through the Maze of Computer Espionage and the paper "Stalking the Wily Hacker". Stoll's book was later chronicled in an episode of WGBH's NOVA titled "The KGB, the Computer, and Me", which aired on PBS stations in 1990.

In his 1995 book Silicon Snake Oil and an accompanying article in Newsweek, Stoll raised questions about the influence of the Internet on future society, and whether it would be beneficial. He made various predictions in the article, such as calling e-commerce nonviable (due to a lack of personal contact and secure online funds transfers) and the future of printed news publications ("no online database will replace your daily newspaper"). When the article resurfaced on Boing Boing in 2010, Stoll left a self-deprecating comment: "Of my many mistakes, flubs, and howlers, few have been as public as my 1995 howler ... Now, whenever I think I know what's happening, I temper my thoughts: Might be wrong, Cliff ..."

Stoll was an eighth-grade physics teacher at Tehiyah Day School, in El Cerrito, California, and later taught physics to home-schooled teenagers. Stoll was a regular contributor to MSNBC's The Site. Stoll is an FCC licensed amateur radio operator with the call sign K7TA. He appears frequently on Brady Haran's YouTube channel Numberphile.

Stoll sells blown glass Klein bottles on the internet through his company Acme Klein Bottles. He stores his inventory in the crawlspace underneath his home in Oakland, California, and accesses it when needed with a homemade miniature robotic forklift.

Books

• Clifford Stoll (1989). The Cuckoo's Egg. New York: Doubleday. ISBN 0-370-31433-6.
• Clifford Stoll (1995). Silicon Snake Oil: Second Thoughts on the Information Highway. ISBN 0-330-34442-0.
• Clifford Stoll (2000). High-Tech Heretic: Reflections of a Computer Contrarian. Knopf Doubleday Publishing. ISBN 0-385-48976-5.
• Clifford Stoll (2002). LogOut. Fischer-Taschenbuch-Verlag. ISBN 3-596-15512-6.

References

1. "K7TA".
2. "The Klein Bottle Guy (with Cliff Stoll) - Numberphile Podcast". YouTube.
3. ^ Гребенников, Вадим (Grebennikov, Vadim) (2018). Радиоразведка России. Перехват информации [Radio Intelligence of Russia. Interception of information] (in Russian). Издательские решения (Rideró) via loveread.ec. ISBN 9785449359568. Archived from the original on October 18, 2024. Retrieved October 21, 2024.{{cite book}}: CS1 maint: multiple names: authors list (link) additional material
4. Clifford Stoll: Clifford Stoll on Everything – 18 minutes with an Agile mind. TED conference February 2006
5. "WBFO Alumni". WBFO. Archived from the original on July 19, 2011.
6. Simson L. Garfinkel (August 2010). "Digital forensics research: The next 10 years". Digital Investigation. 7: S64–S73. doi:10.1016/j.diin.2010.05.009. hdl:10945/44251. ISSN 1742-2876.
7. Clifford Stoll (May 1988). "Stalking the wily Hacker". Communications of the ACM. 31 (5). Association for Computing Machinery.
8. "The KGB, the Computer, and Me" Nova episode.
9. ^ Snapp, Martin (March 28, 2016). "How a Berkeley Eccentric Beat the Russians—and Then Made Useless, Wondrous Objects". California Magazine. Cal Alumni Association. Retrieved June 12, 2017.
10. Clifford Stoll (1995). Silicon Snake Oil. Macmillan. ISBN 0-330-34442-0.
11. Clifford Stoll: The Internet? Bah! Newsweek, February 27, 1995.
12. Curmudgeonly essay on "Why the Internet Will Fail" from 1995 Boing Boing, February 26, 2010.
13. Clifford Stoll: Clifford Stoll on Everything – 18 minutes with an Agile mind. TED conference February 2006.
14. Slashdot.org.
15. Stoll's callsign at QRZ.com.
16. "Cliff Stoll on Numberphile". Numberphile on YouTube. Retrieved August 18, 2024.
17. Peterson, Ivars (February 14, 2001). "Immersed in Klein Bottles". Science News. Retrieved December 1, 2013.
18. Numberphile (June 22, 2015), The man with 1,000 Klein Bottles UNDER his house – Numberphile, archived from the original on December 22, 2021, retrieved July 4, 2016
19. Colombo, Michael (May 30, 2013). "An Afternoon with Cliff Stoll | Make". Make: DIY Projects and Ideas for Makers. Retrieved July 6, 2016.
20. "How a Berkeley Eccentric Beat the Russians—and Then Made Useless, Wondrous Objects". Cal Alumni Association. March 28, 2016. Retrieved February 20, 2018.

External links

• Clifford Stoll's speaker page at Leigh Bureau
• Clifford Stoll at TED
• Appearances on C-SPAN
• Clifford Stoll at IMDb
• Stalking the Wily Hacker copy at textfiles.com, May 1988
• Picture of Stoll from an interview with by Pro-Linux Magazine, February 9, 2005 (in German)
• 2004 audio interview with Clifford Stoll by Karen Saupe (RealAudio)
• Cliff Stoll and Jonathan Zittrain on When Countries Collide Online: Internet Spies, Cyberwar, and Government Skullduggery, MediaBerkman, February 8, 2010 (1:21 h), Video (Ogg video), Podcast (MP3, Ogg audio)
• Talk by Cliff Stoll April 4, 1996
• One of Stoll's Klein bottles examined by Adam Savage (YouTube), November 1, 2021

• 1950 births
• Living people
• American astronomers
• American technology writers
• American non-fiction crime writers
• University of Arizona alumni
• Amateur radio people
• Writers from Buffalo, New York
• Digital forensics people
• People associated with computer security
• Scientists from New York (state)
• University at Buffalo alumni
• Berkeley Macintosh Users Group members