Certain individuals are consistently recognized as leading figures due to their long-term contributions, thought leadership, and widespread impact on the field.

Below are 25 highly regarded cybersecurity experts across different specializations.
From Gemini AI Deep Dive Overview – 10/20/2025

Source: Gemini AI Deep Dive Overview - 10/20/2025

I’m Connor Wadlin, a Cybersecurity specialist with a keen eye on the world around me! As an Engineer, my focus is on improving the lives of everyone, not just the rich and powerful.

At onAir, I am the Hub Coordinator for Cybersecurity. That means I do a little bit of everything, from curating posts, hosting my own onAircast series titled “Cybersecurity @GMU”, and helping others do the same. My focus is on providing the BEST platform for people to learn, discuss, and engage around Cybersecurity so that we can ALL live happier, safer, and more fulfilling lives together!

I’m happy you’re here, so thank you for taking some time out of your day to learn 🙂

Anup Ghosh is the Chief Executive Officer (CEO) at ThreatMate. Prior to Threatmate, Ghosh was CEO of Fidelis Cybersecurity. An established cybersecurity leader, Ghosh brings extensive senior leadership experience, successfully managing and expanding markets for start-ups and mature cybersecurity companies. Mr. Ghosh’s expertise has been featured on Wall Street Journal, New York Times, Forbes, Associated Press, CNN, Fox News, Federal Times, Market Watch, and USA Today. Ghosh’s charter is to establish Fidelis as the go-to partner for high fidelity adversarial detection and response solutions in the Global 2000 and Government segments.

Ghosh was also managing director and global platforms lead at Accenture Security, where he led strategic technology investments that scaled Accenture Security’s rapid growth in the managed security services business. Previously Ghosh founded and ran Invincea, Inc., a Virginia-based machine learning cybersecurity company, through its acquisition by Sophos in March 2017.

Prior to founding Invincea, he was Chief Scientist for the GMU Center for Secure Information Systems and a Program Manager at the Defense Advanced Research Projects Agency (DARPA) where he created and managed an extensive portfolio of cybersecurity programs for the US Government DOD and Intelligence Community.

Duminda Wijesekera is a professor in the Cyber Security Engineering Department at George Mason University. He was the inaugural chairman of the Cyber Security Engineering Department until December 2022, and a visiting research scientist at the National Institute of Standards and Technology (NIST) between 2007-2022. He leads the Mason Innovation Laboratory at Mason Square. He is also a fellow at the Potomac Institute of Policy Studies.

His current research addresses multiple areas. The first is the security and safety of cyber-physical systems. Research in this area includes the safety and security of Intelligent Transportation Systems (ITS) that include trains, aircraft, and connected/automated automobiles. Another area is digital forensics. Research in digital forensics includes creating potential scenario from evidence and creating frameworks for argumentations, error management of forensic data, and adding odds ratio between different scenarios that fit the evidence. A third area is applying formal methods to CPS safety and security.

Source: Webpage

Brian Krebs worked as a reporter for The Washington Post from 1995 to 2009, authoring more than 1,300 blog posts for the Security Fix blog, as well as hundreds of stories for washingtonpost.com and The Washington Post newspaper, including eight front-page stories in the dead-tree edition and a Post Magazine cover piece on botnet operators.

In 2014, he was profiled in The New York Times, Business Week, NPR’s Terry Gross, and by Poynter.org. More recently, he was invited to an “Ask Me Anything” discussion on Reddit about investigative reporting.

Testing 1, 2, 3

Source: Website

Sushil Jajodia is a University Professor, BDM International Professor, and the founding director of the Center for Secure Information Systems in the College of Engineering and Computing. He is also the founding site director of the NSF IUCRC Center for Configuration Analytics and Automation at Mason. His research interests include security, privacy, databases, and distributed systems. His current research sponsors are the U.S. Army Research Office (ARO), the U.S. Office of Naval Research (ONR), The U.S. National Security Administration (NSA), The National Science Foundation (NSF), the National Institute of Standards and Technology (NIST), Northrop Grumman, and The MITRE Corporation.

He was recognized for the most accepted papers at the 30th anniversary of the IEEE Symposium on Security and Privacy. His h-index is 86 and Erdös number is 2; both indicate a broad citation in scholarly publishing. He is the founding consulting editor of the Springer International Series on Advances in Information Security and SpringerBriefs in Computer Science. He has served in different capacities for various journals and conferences. Sushil Jajodia has supervised 27 doctoral dissertations.

Source: GMU webpage

Shawn Purvis serves as President and CEO of Sabel Systems, part of the Sagewind Capital Portfolio. As CEO of Sabel Systems, Ms. Purvis is responsible for all aspects of Sabel’s growth, M&A, product development and people strategy. Sabel is a leading provider of digital engineering, acquisition, manufacturing, supply chain and logistics solutions.  Shawn has recently been named as a member of the George Mason University Board of Visitors through June 30, 2029.

Over the course of Shawn’s 30 years of P&L responsibilities, she has led billiondollar organizations in the areas of defense, intelligence and cyber security technical solutions in support of the warfighter and intelligence customers both domestically and globally. Ms. Purvis has in-depth skills in driving strategy, policy, corporate strategic campaigns and financial/non-financial goals across the company. She actively participates in corporate governance in areas of risks, benefits, cyber and policies and engagements with the Board of Directors. She has a passion for customer service and delivery in support of our nation’s most critical missions.

Katie Moussouris founded Luta Security in 2016 fresh off the heels of launching Hack the Pentagon, the first ever bug bounty of the US government. She named her company after the local nickname of the CHamoru island of Rota, where her mother was born in the Commonwealth of the Northern Mariana Islands, a US Territory.

Katie was born and raised in Boston, MA and was encouraged by her biochemist mother to study science. Her father was a Greek immigrant jeweler who taught her valuable lessons about running a bootstrapped profitable business. Katie fosters a company culture of equity and healthy boundaries, with all Luta Security FTEs paid for full time work with a 32-hour 4-day work week. She has grown Luta Security proving that businesses can be profitable by putting people first.

Source: Luta webpage