Gerald Combs, a computer science graduate of the University of Missouri-Kansas City, is the creator and lead developer of Ethereal, now Wireshark, which was first released in 1998. Combs worked for Network Integration Services (NIS) until mid 2006 when he moved to a new job at CACE Technologies. In June 2006, he created Wireshark from the Ethereal codebase. The driving factor in his creating this new project was the inability to come to an agreement with his former employer (which held the Ethereal trademark) to allow him to keep using the trademark. Combs has stated on the Wireshark homepage that he is going to register Wireshark under his own name to prevent this situation from happening again. Combs has also stated "There was no "fight" between NIS and I. Although I'm deeply disappointed about the trademarks, I understand their decision. NIS is a great company and I still hold everyone there in high regard."
IceBerg is really only known from the Oki 900 FAQ that he released. Not a whole lot is known about him, but there are many rumors.
Jason Scott Sadofsky (born September 13, 1970 in Hopewell Junction, New York), more commonly known as Jason Scott is an American weblogger who is the creator, owner and maintainer of textfiles.com, a web site which archives files from historic bulletin board systems. He is also the creator of a 2005 documentary film about BBSes, BBS: The Documentary.
In 1990, along with John Anthony Rescigno (who was known by the pseudonym "Trout.Complex"), Sadofsky started TinyTIM, a popular MUSH. He resigned in 2000.
In 1995 Jason joined the video game company Psygnosis as a technical support worker, before being hired by a video game startup, Focus Studios, as an art director. After Focus Studios' closure, Jason moved into UNIX administration, where he has remained.
He has been a speaker at DEF CON, an annual hacker conference, the first time at the 7th conference in 1999, then again in 2000, 2001, 2003, 2004 and 2005. Scott also spoke at PhreakNIC 6 and 9, Rubi Cons 4 and 5, the 5th H.O.P.E. conference in 2004, Notacons 1, 2 (as a backup), 3 and 4, Toorcon 7, and beta premiered his documentary at the 7th annual Vintage Computer Festival, where his screenings have become an anticipated staple. Most of his talks focus on the capturing of digital history or consist of narratives of stories relevant to his experiences online.
In 2007, he co-founded Blockparty, a North American demoparty. For their inaugural year, they paired up with Notacon which takes place annually in Cleveland, Ohio. This collaborative effort allowed the fledgling party to utilize the existing support structure of an established conference.
He currently resides in Massachusetts, and is filming a documentary about text adventure games, called GET LAMP, as well as a documentary on Arcades, called ARCADE.
Gordon Lyon (perhaps better known by his pseudonym Fyodor Vaskovich) is a network security expert, open source programmer, writer, and self-proclaimed hacker. He authored the open source Nmap Security Scanner and numerous books, web sites, and technical papers focusing on network security. Lyon is a founding member of the Honeynet Project and Vice President of Computer Professionals for Social Responsibility.
H D Moore (born 1981) is a security researcher who has been active on internet mailing lists since 1998. H D Moore works as the Director of Security Research for BreakingPoint Systems, where he focuses on the security testing features of the BreakingPoint product line. Prior to joining BreakingPoint, HD co-founded Digital Defense, a managed security services firm, where he developed the vulnerability assessment platform and led the security research team.
Works/ed for L0pht Heavy Industries which later became @stake inc. developing many tools such as the windows password cracker L0pht Crack, and Antisniff software.
He has also worked for BBN Technologies Inc. who created ARPANET for the U.S. military/government.
Michał Zalewski (born 19 January 1981) is a computer security expert from Poland.
He has been a prolific vulnerability researcher and a frequent Bugtraq poster since mid-1990s, and has authored a number of programs for Unix-like operating systems. For his continued research on browser security, he was named one of the 15 most influential people in security and among the 100 most influential people in IT. Zalewski is an employee of Google Inc.
Accredited for finding numerous vulnerabilities for IBM Internet Security Systems; while working on their team code named XFORCE. He is now a Google Engineer.
Examples of vulnerabilities worked on: (either by himself or with his group):
Found Heap based buffer overflow of Common Management Agent
ClamAV Library Remote Heap Overflows Security Advisory
Multiple Remote Vulnerabilities in BIND4 and BIND8
Most famous for his skills with Reverse Engineering, finding the Heartbleed bug and binary source code auditing.