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Jeff Moss (born January 1, 1975), also known as Dark Tangent, is an American
hacker A hacker is a person skilled in information technology who achieves goals and solves problems by non-standard means. The term has become associated in popular culture with a security hackersomeone with knowledge of bug (computing), bugs or exp ...
,
computer A computer is a machine that can be Computer programming, programmed to automatically Execution (computing), carry out sequences of arithmetic or logical operations (''computation''). Modern digital electronic computers can perform generic set ...
and
internet security Internet security is a branch of computer security. It encompasses the Internet, browser security, web site security, and network security as it applies to other applications or operating systems as a whole. Its objective is to establish rules ...
expert who founded the Black Hat and
DEF CON DEF CON (also written as DEFCON, Defcon, or DC) is a Computer security conference, hacker convention held annually in Las Vegas Valley, Las Vegas, Nevada. The first DEF CON took place in June 1993 and today many attendees at DEF CON include comp ...
computer security conference A computer security conference is a convention for individuals involved in computer security. They generally serve as meeting places for system and network administrators, hackers, and computer security experts. Common activities at hacker conven ...
s.


Early life and education

Moss received his first computer at the age of 10. He became fascinated because he wasn't old enough to drive a car or vote, but he could engage in adult conversation with people all over the country. Moss graduated from
Gonzaga University Gonzaga University (GU) ( ) is a Private university, private Society of Jesus, Jesuit university in Spokane, Washington, United States. It is Higher education accreditation in the United States, accredited by the Northwest Commission on Colleges ...
with a BA in
Criminal Justice Criminal justice is the delivery of justice to those who have been accused of committing crimes. The criminal justice system is a series of government agencies and institutions. Goals include the rehabilitation of offenders, preventing other ...
. He worked for Ernst & Young, LLP in their Information System Security division and was a director at
Secure Computing Corporation Secure Computing Corporation (SCC) was a public company that developed and sold computer security appliances and hosted services to protect users and data. McAfee acquired the company in 2008. The company also developed filtering systems used b ...
where he helped establish the Professional Services Department in the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
,
Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
, and
Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
.


Security conferences

In 1993 he created the first
DEF CON DEF CON (also written as DEFCON, Defcon, or DC) is a Computer security conference, hacker convention held annually in Las Vegas Valley, Las Vegas, Nevada. The first DEF CON took place in June 1993 and today many attendees at DEF CON include comp ...
hacker convention, based around a party for members of a Fido hacking network in
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
. It slowly grew, and by 1999 was attracting major attention. In 1997 he created
Black Hat Briefings Black Hat Briefings (commonly referred to as Black Hat) is a computer security conference that provides security consulting, training, and briefings to hackers, corporations, and government agencies around the world. Black Hat brings together ...
computer security conference A computer security conference is a convention for individuals involved in computer security. They generally serve as meeting places for system and network administrators, hackers, and computer security experts. Common activities at hacker conven ...
that brings together a variety of people interested in
information security Information security is the practice of protecting information by mitigating information risks. It is part of information risk management. It typically involves preventing or reducing the probability of unauthorized or inappropriate access to data ...
. He sold Black Hat in 2005 to CMP Media, a subsidiary of UK-based
United Business Media UBM plc was a British business-to-business (B2B) events organiser headquartered in London, England, before its acquisition by Informa in 2018. It had a long history as a Multinational corporation, multinational media company. Its main focus was ...
, for a reported $13.9 million USD.
DEF CON DEF CON (also written as DEFCON, Defcon, or DC) is a Computer security conference, hacker convention held annually in Las Vegas Valley, Las Vegas, Nevada. The first DEF CON took place in June 1993 and today many attendees at DEF CON include comp ...
was not included in the sale. In 2018 Jeff launched the first
DEF CON DEF CON (also written as DEFCON, Defcon, or DC) is a Computer security conference, hacker convention held annually in Las Vegas Valley, Las Vegas, Nevada. The first DEF CON took place in June 1993 and today many attendees at DEF CON include comp ...
hacker convention outside of the United States. Holding the same name DEF CON China was hosted in
Beijing, China Beijing, Chinese postal romanization, previously romanized as Peking, is the capital city of China. With more than 22 million residents, it is the world's List of national capitals by population, most populous national capital city as well as ...
and co-hosted by
Baidu Baidu, Inc. ( ; ) is a Chinese multinational technology company specializing in Internet services and artificial intelligence. It holds a dominant position in China's search engine market (via Baidu Search), and provides a wide variety of o ...
. The first year of DEF CON China was labeled a
eta Eta ( ; uppercase , lowercase ; ''ē̂ta'' or ''ita'' ) is the seventh letter of the Greek alphabet, representing the close front unrounded vowel, . Originally denoting the voiceless glottal fricative, , in most dialects of Ancient Greek, it ...
year, and in 2019 they formalized the conference with DEF CON China 1.0.


Later career

Moss is a member and regular attendee of the Washington D.C. based
Council on Foreign Relations The Council on Foreign Relations (CFR) is an American think tank focused on Foreign policy of the United States, U.S. foreign policy and international relations. Founded in 1921, it is an independent and nonpartisan 501(c)(3) nonprofit organi ...
(CFR), an independent, nonpartisan membership organization,
think tank A think tank, or public policy institute, is a research institute that performs research and advocacy concerning topics such as social policy, political strategy, economics, military, technology, and culture. Most think tanks are non-governme ...
, and publisher. In 2009 Moss was sworn into the
Homeland Security Advisory Council The Homeland Security Advisory Council (HSAC) is part of the Executive Office of the President of the United States. It was created by an Executive Order In the United States, an executive order is a directive by the president of the United ...
of the
Barack Obama Barack Hussein Obama II (born August 4, 1961) is an American politician who was the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, he was the first African American president in American history. O ...
administration. On April 28 2011 Jeff Moss was appointed
ICANN The Internet Corporation for Assigned Names and Numbers (ICANN ) is a global multistakeholder group and nonprofit organization headquartered in the United States responsible for coordinating the maintenance and procedures of several dat ...
Chief Security Officer A chief security officer (CSO) is an organization's most senior executive accountable for the development and oversight of policies and programs intended for the mitigation and/or reduction of compliance, operational, strategic, financial and re ...
. In July 2012, Secretary
Janet Napolitano Janet Ann Napolitano (; born November 29, 1957) is an American politician, lawyer, and academic administrator. She served as president of the University of California from 2013 to 2020, on the faculty at the Goldman School of Public Policy at t ...
directed the
Homeland Security Advisory Council The Homeland Security Advisory Council (HSAC) is part of the Executive Office of the President of the United States. It was created by an Executive Order In the United States, an executive order is a directive by the president of the United ...
to form the Task Force on CyberSkills in response to the increasing demand for the best and brightest in the cybersecurity field across industry, academia and government. The Task Force, co-chaired by Jeff Moss and
Alan Paller Alan Paller (September 17, 1945 - November 9, 2021) was a cyber security expert, the founder of the SANS Institute, and the founder and former president of SANS Technology Institute. Biography Alan Terry Paller was born on September 17, 1945 ...
, conducted extensive interviews with experts from government, the private sector, and academia in developing its recommendations to grow the advanced technical skills of the DHS cybersecurity workforce and expand the national pipeline of men and women with these cybersecurity skills. On October 1, the HSAC unanimously approved sending the Task Force recommendations to the Secretary. In October 2013, Jeff announced that he would be stepping down from his position at
ICANN The Internet Corporation for Assigned Names and Numbers (ICANN ) is a global multistakeholder group and nonprofit organization headquartered in the United States responsible for coordinating the maintenance and procedures of several dat ...
at the end of 2013. In 2013, Jeff was appointed as a Nonresident Senior Fellow at the
Atlantic Council The Atlantic Council is an American think tank in the field of international affairs, favoring Atlanticism, founded in 1961. It manages sixteen regional centers and functional programs related to international security and global economic prosp ...
, associated with the Cyber Statecraft Initiative, within the Brent Scowcroft Center on International Security. In 2014, Jeff joined the
Georgetown University Georgetown University is a private university, private Jesuit research university in Washington, D.C., United States. Founded by Bishop John Carroll (archbishop of Baltimore), John Carroll in 1789, it is the oldest Catholic higher education, Ca ...
School of Law School Cybersecurity Advisory Committee. 18 March 2016,
Richemont Compagnie Financière Richemont S.A., commonly known as Richemont, is a Switzerland-based luxury goods holding company founded in 1988 by South African businessman Johann Rupert. Through its various subsidiaries, Richemont produces and sells jew ...
announced his nomination for election to the Board of Directors. In 2017, Jeff was named a Commissioner at the Global Commission on the Stability of Cyberspace (GCSC). The GCSC is composed of 24 prominent independent Commissioners representing a wide range of geographic regions as well as government, industry, technical and civil society stakeholders with legitimacy to speak on different aspects of cyberspace. The Commission's stated aim is to develop proposals for norms and policies to enhance international security and stability and guide responsible state and non-state behavior in cyberspace. In 2017, Jeff spearheaded the creation of the DEF CON Voting Machine Village. Debuting at DEF CON 25, the Voting Machine Village allowed hackers to test the security of electronic voting machines, including several models still in active use in the US. The machines were all compromised over the course of the conference by DEF CON attendees, some within hours of the village's opening. The resulting media coverage of the vulnerability of all tested machines sparked a national conversation and inspired legislation in
Virginia Virginia, officially the Commonwealth of Virginia, is a U.S. state, state in the Southeastern United States, Southeastern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States between the East Coast of the United States ...
. In September 2017, the Voting Machine Village produced "DEF CON 25 Voting Machine Hacking Village: Report on Cyber Vulnerabilities in US Election Equipment, Databases and Infrastructure" summarizing its findings. The findings were publicly released at an event sponsored by the
Atlantic Council The Atlantic Council is an American think tank in the field of international affairs, favoring Atlanticism, founded in 1961. It manages sixteen regional centers and functional programs related to international security and global economic prosp ...
and the paper went on to win an
O'Reilly O'Reilly () is a common Irish surname. The O'Reillys were historically the kings of East Bréifne in what is today County Cavan. The clan were part of the Connachta's Uí Briúin Bréifne kindred and were closely related to the Ó Ruairc ( ...
Defender Research Award. In March 2018, the DEF CON Voting Machine Hacking Village was awarded a Cybersecurity Excellence Award. The award cites both the spurring of a national dialog around securing the US election system and the release of the nation's first cybersecurity election plan. In December 2021, Moss was appointed as one of twenty-three members of a newly formed US DHS CISA cybersecurity advisory council. Other notable members include
Alex Stamos Alex Stamos (born 1979) is an American, cybersecurity expert, the former chief security officer (CSO) at Facebook. His planned departure from the company, following disagreement with other executives about how to address the Russian government's ...
, Steve Adler, Bobby Chesney, Thomas Fanning, Vijaya Gadde, Patrick Gallagher, and Alicia Tate-Nadeau.


Current position

Moss is currently based in
Seattle Seattle ( ) is the most populous city in the U.S. state of Washington and in the Pacific Northwest region of North America. With a population of 780,995 in 2024, it is the 18th-most populous city in the United States. The city is the cou ...
, where he works as a security consultant for a company that is hired to test other companies' computer systems. He has been interviewed on issues including the internet situation between the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
and
China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
, spoofing and other e-mail threats and the employment of hackers in a professional capacity, including in law enforcement.


Film

Moss was an Executive Producer on ''DEFCON: The Documentary'' (2013). The film follows the four days of the conference, events and people (attendees and staff), and covers history and philosophy behind DEF CON's success and unique experiences. He was also a cast member in the film ''Code 2600''. Moss also works with the technical consulting team for the television series ''
Mr. Robot ''Mr. Robot'' is an American drama thriller television series created by Sam Esmail for USA Network. It stars Rami Malek as Elliot Alderson, a cybersecurity engineer and hacker with social anxiety disorder, clinical depression, and dissoci ...
''.


Popular culture references

DEF CON was portrayed in ''
The X-Files ''The X-Files'' is an American science fiction on television, science fiction drama (film and television), drama television series created by Chris Carter (screenwriter), Chris Carter. The original series aired from September 10, 1993, to Ma ...
'' episode "Three of a Kind" featuring an appearance by
the Lone Gunmen The Lone Gunmen are a trio of fictional characters, Richard "Ringo" Langly, Melvin Frohike and John Fitzgerald Byers, who appeared in recurring roles on the American television series ''The X-Files'', and who starred in the short-lived spin-off ...
. DEF CON was portrayed as a United States government-sponsored convention instead of a civilian convention. Actor
Will Smith Willard Carroll Smith II (born September 25, 1968) is an American actor, rapper, and film producer. Known for his work in both Will Smith filmography, the screen and Will Smith discography, music industries, List of awards and nominations re ...
visited DEF CON 21 to watch a talk by
Apollo Robbins Apollo Robbins (born May 23, 1974) is an American sleight-of-hand artist, security consultant, self-described gentleman thief and deception specialist. ''Forbes'' has called him "an artful manipulator of awareness". Early life Robbins was born ...
, the
gentleman thief A gentleman thief, gentleman burglar, lady thief, or phantom thief is a stock character in fiction. A gentleman or lady thief is characterised by impeccable manners, charm, courtesy, and the avoidance of physical force or intimidation to stea ...
, and to study the DEF CON culture for an upcoming movie role.


References


External links

* * * {{DEFAULTSORT:Moss, Jeff Hackers Living people Gonzaga University alumni 1975 births Ernst & Young people Commissioners of the Global Commission on the Stability of Cyberspace Atlantic Council