WMark T. Abene is an American infosec expert and entrepreneur, originally from New York City. Better known by his pseudonym Phiber Optik, he was once a member of the hacker groups Legion of Doom and Masters of Deception.
WJacob Appelbaum is an American independent journalist, computer security researcher, artist, and hacker. He studied at the Eindhoven University of Technology and was formerly a core member of the Tor project, a free software network designed to provide online anonymity. Appelbaum is also known for representing WikiLeaks. He has displayed his art in a number of institutions across the world and has collaborated with artists such as Laura Poitras, Trevor Paglen, and Ai Weiwei. His journalistic work has been published in Der Spiegel and elsewhere. Appelbaum has repeatedly been targeted by U.S. law enforcement agencies, who obtained a court order for his Twitter account data, detained him at the U.S. border after trips abroad, and seized his laptop and several mobile phones.
WJaya Baloo is a cybersecurity expert who is currently the Chief Information Security Officer (CISO) at Avast Software. Baloo was named as one of the top 100 CISO's in 2017, and one of Forbes 100 Women Founders in Europe To Follow in 2018.
WIan Coldwater is a computer security specialist and speaker specializing in Kubernetes and cloud native security. They are a security architect at Twilio, and they co-chair the Kubernetes special interest group, Kubernetes SIG Security.
WTom Cross, also known as Decius, is an American computer security expert and hacker.
WLars Eilebrecht is a German software engineer, solutions architect, IT security expert, and Open Source evangelist. He is one of the original developers of the Apache HTTP Server, and co-founder and former Vice President of the Apache Software Foundation. Lars was based in the United Kingdom between 2009 and 2019 where he founded the IT consultancy company Primevation Ltd. Since 2019 he is based in Germany where he works as Chief Information Security Officer for polypoly.
WAlexandra Asanovna Elbakyan is a Kazakhstani computer programmer and creator of the website Sci-Hub, which provides free access to research papers without regard for copyright. According to Elbakyan, Sci-Hub has served over a billion science articles to its visitors since 2011.
WMohamed Abdelbasset Elnouby is an Egyptian programmer and information security specialist, and one of the most famous white hat Arabic hackers.
WPenelope (Penny) Endersby is a British researcher and academic specialising in armour and explosives. She was appointed chief executive of the Met Office in December 2018. Prior to that, she led cyber and information systems at the Defence Science and Technology Laboratory.
WFrancesco Vianello, better known by his nickname Fravia, was a software reverse engineer, who maintained a web archive of reverse engineering techniques and papers. He also worked on steganography. He taught on subjects such as data mining, anonymity and stalking.
WEva Galperin is the Director of Cybersecurity at the Electronic Frontier Foundation (EFF) and technical advisor for the Freedom of the Press Foundation. She is noted for her extensive work in protecting global privacy and free speech and for her research on malware and nation-state spyware.
WSteven "Steve Tiberius" Gibson is an American software engineer, security researcher, and IT security proponent. In the early 1980s, Gibson worked on light pen technology for use with Apple and Atari systems. In 1985, he founded Gibson Research Corporation, best known for its SpinRite software.
WRobbert (Rop) Valentijn Gonggrijp is a Dutch hacker and one of the founders of XS4ALL.
WSean Hastings is an entrepreneur, cypherpunk author, and security expert. He is best known for being the founding CEO of HavenCo, the world's first formal data haven.
WGeorge Francis Hotz, alias GeoHot, is an American security hacker, entrepreneur, and software engineer. He is known for developing iOS jailbreaks, reverse engineering the PlayStation 3, and for the subsequent lawsuit brought against him by Sony. Since September 2015, he has been working on his vehicle automation machine learning company comma.ai.
WTroy Adam Hunt is an Australian web security consultant known for public education and outreach on security topics. He created Have I Been Pwned?, a data breach search website that allows users to see if their personal information has been compromised. He has also authored several popular security-related courses on Pluralsight, and regularly presents keynotes and workshops on security topics. He also is the creator of ASafaWeb, a tool that performs automated security analysis on ASP.NET websites.
WDaniel Kaminsky was an American computer security researcher. He was a co-founder and chief scientist of WhiteOps, a computer security company. He previously worked for Cisco, Avaya, and IOActive, where he was the director of penetration testing. The New York Times labeled Kaminsky an "Internet security savior" and "a digital Paul Revere".
WSamy Kamkar is an American privacy and security researcher, computer hacker and entrepreneur. At the age of 16, he dropped out of high school. One year later, he co-founded Fonality, a unified communications company based on open-source software, which raised over $46 million in private funding. In 2005, he created and released the fastest spreading virus of all time, the MySpace worm Samy, and was subsequently raided by the United States Secret Service under the Patriot Act. He also created SkyJack, a custom drone which hacks into any nearby Parrot drones allowing them to be controlled by its operator and created the Evercookie, which appeared in a top-secret NSA document revealed by Edward Snowden and on the front page of The New York Times. He has also worked with The Wall Street Journal, and discovered the illicit mobile phone tracking where the Apple iPhone, Google Android and Microsoft Windows Phone mobile devices transmit GPS and Wi-Fi information to their parent companies. His mobile research led to a series of class-action lawsuits against the companies and a privacy hearing on Capitol Hill. Kamkar has a chapter giving advice in Tim Ferriss' book Tools of Titans.
WRohit Khare is an Indian American computer scientist and entrepreneur who has been active in many aspects of the development of the World Wide Web. He is the founder of Ångströ, the co-founder of KnowNow, a former director of CommerceNet Labs and a key player in the microformats community. He holds a Ph.D. from the University of California, Irvine and bachelor's degree from Caltech, both in Computer Science. He previously worked on Internet security for the W3C. He is active in the Representational State Transfer (ReST) community, and in August 2007 wrote the ARRESTED paper on syndication-oriented architecture, a variant of service-oriented architecture.
WRNDr. Vlastimil Klíma is a leading cryptographer, computer security expert, and white hat hacker.
WNadim Kobeissi is a Lebanese computer science researcher specialized in applied cryptography. He is the author of Cryptocat, an open-source encrypted web chat client. Kobeissi is also known for speaking publicly against Internet censorship and Internet surveillance.
WMark Edwin Kriegsman is an American entrepreneur, computer programmer, inventor, writer, and Director of Engineering at Veracode.
WIvan Krstić is a Croatian computer security expert, currently working on core security at Apple Inc. Krstić was previously the director of security architecture at One Laptop per Child. He is a co-author of The Official Ubuntu Book (ISBN 978-0-13-243594-9).
WBen Laurie is an English software engineer. He is a currently the Director of Security at The Bunker Secure Hosting.
WErik Laykin is a computer forensics expert and cyber-crime investigator.
WMatthew Rosenfeld, known as Moxie Marlinspike, is an American entrepreneur, cryptographer, and computer security researcher. Marlinspike is the creator of Signal, co-founder of the Signal Foundation, and serves as the CEO of Signal Messenger LLC. He is also a co-author of the Signal Protocol encryption used by Signal, WhatsApp, Facebook Messenger, and Skype.
WMorgan Marquis-Boire is a New Zealand-born hacker, journalist, and security researcher. In late 2017 he was accused of at least ten sexual assaults.
WJohn David McAfee was a British-American computer programmer, businessman, and two-time presidential candidate who unsuccessfully sought the Libertarian Party nomination for president of the United States in 2016 and 2020. In 1987, he wrote the first commercial anti-virus software, founding McAfee Associates to sell his creation. He resigned in 1994 and sold his remaining stake in the company. McAfee became the company's most vocal critic in later years, urging consumers to uninstall the company's anti-virus software, which he characterized as bloatware. He disavowed the company's continued use of his name in branding, a practice that has persisted in spite of a short-lived corporate rebrand attempt under Intel ownership.
WCharles Alfred Miller is an American computer security researcher with Cruise Automation. Prior to his current employment, he spent five years working for the National Security Agency and has worked for Uber.
WH. D. Moore is a network security expert, open source programmer, and hacker. He is a developer of the Metasploit Framework, a penetration testing software suite, and the founder of the Metasploit Project.
WVincent Moscaritolo is semi-retired American computer security expert known for work in encryption applications for mobile devices. From 2012 to 2015, he was the Distinguished Member of Technical Staff at Silent Circle, where he designed the original messaging technologies Silent Circle uses. In 2015, he left Silent Circle to co-found 4th-A Technologies, LLC with Robbie Hanson. 4th-A Technologies develops technologies to restore to people their inalienable right to be “secure in their documents”. They designed ZeroDark.cloud a framework that simplifies the development of apps that interact with the cloud, and performs tasks such as syncing, messaging & collaboration. It uses zero-knowledge encryption, ensuring the data in the cloud cannot be compromised. They also produced the Storm4 secure cloud storage service.
WAlec David Edward Muffett is an Anglo-American internet-security evangelist, architect, and software engineer. He is principally known for his work on Crack, the original Unix password cracker, and for the CrackLib password-integrity testing library; he is also active in the open-source software community.
WSteven James Murdoch is Professor of Security Engineering in the Computer Science Department, University College London. His research covers privacy-enhancing technology, Internet censorship, and anonymous communication, in particular Tor. He is also known for discovering several vulnerabilities in the EMV bank chipcard payment system and for creating Tor Browser.
WIgor Muttik is a computer security expert, researcher and inventor.
WPeter Gabriel Neumann is a computer-science researcher who worked on the Multics operating system in the 1960s. He edits the RISKS Digest columns for ACM Software Engineering Notes and Communications of the ACM. He founded ACM SIGSOFT and is a Fellow of the ACM, IEEE, and AAAS.
WMeredith L. Patterson is an American technologist, science fiction writer, and journalist. She has spoken at numerous industry conferences on a wide range of topics. She is also a blogger and software developer, and a leading figure in the biopunk movement.
WTheo de Raadt is a South African-born software engineer who lives in Calgary, Alberta, Canada. He is the founder and leader of the OpenBSD and OpenSSH projects and was also a founding member of NetBSD. In 2004, De Raadt won the Free Software Award for his work on OpenBSD and OpenSSH.
WMwende Window Snyder, better known as Window Snyder, is an American computer security expert. She has been a top security officer at Square, Inc., Apple, Fastly, Intel and Mozilla Corporation. She was also a Senior Security Strategist at Microsoft. She is co-author of Threat Modeling, a standard manual on application security.