Management Team

The Skybox Security Management team is filled with seasoned executive with proven track records. They have proven track records in building successful companies, developing  new technologies, and bringing innovative solutions to the global marketplace.

Gidi Cohen, Chief Executive Officer and Founder
Gidi Cohen, Chief Executive Officer and Founder of Skybox Security

Gidi Cohen co-founded Skybox in 2002 and has guided the company’s vision and development as the leader in cyber security solutions for risk and compliance management. He is a popular speaker at industry conferences, demonstrating how Skybox solutions use risk modeling, network analysis, and attack simulation as practical cyber security tools to predict and prevent potential cyber threats. Gidi holds Bachelors of Science and Master of Science degrees in Computer Sciences and Mathematics from Tel Aviv University.

Michelle Johnson Cobb, VP Marketing and Business Development
Michelle Johnson Cobb, VP Marketing and Business Development, Skybox Security

Michelle Johnson Cobb is a technology marketing leader with a passion for driving success for emerging products. Prior to working at Skybox Security, Michelle held executive marketing roles in computer security, networking, and enterprise software companies, including Asempra Technologies, McAfee, Tumbleweed Communications, and several startups.  Michelle received her MBA with high distinction from the University of Michigan Ross School of Business and a Bachelor of Science in Computer Science also from the University of Michigan.

Stewart Fox, Vice President, Worldwide Sales
Stewart Fox, Vice President, Worldwide Sales, Skybox Security

Stewart Fox, Vice President of Worldwide Sales, brings to Skybox over 20 years of technology sales experience in building and motivating sales teams, driving revenue and building strong relationships with both partners and customers.  He has had repeated success in the worldwide development and expansion of both enterprise and government sales through direct and indirect channels.  Prior to Skybox, Stewart lead the sales team to two years of explosive growth at IronKey,  a leader in authentication, encryption and identity management.  He has held executive sales leadership roles at both private and public companies including AirMagnet, Network Associates, Network General and SCO.

Lior Barak, Chief Financial Officer
Lior Barak, Chief Financial Officer, Skybox Security

Lior Barak is a financial executive with over 13 years of experience in global financial management, mergers and acquisitions, strategic planning, and business operations. At Skybox Security, Lior is responsible for finance, legal, and HR administration. Prior to Skybox, Lior worked as VP of Finance for PureWave Networks and for Alvarion, Inc. Lior holds a BA in Economics from the Hebrew university in Jerusalem, and an MBA in Finance from the New York Institute of Technology.

Amnon Lotem, Chief Technology Officer
Amnon Lotem, Chief Technology Officer

Dr. Amnon Lotem has over 20 years experience in Artificial Intelligence and in modeling and simulation techniques. Dr. Lotem joined Skybox Security in 2002 as Chief Scientist. During his tenure, he has guided the company's research in cyber security solutions and is responsible for development of Skybox’s patents, both awarded and pending. He has also led the company’s development of core algorithms for attack simulation, risk analysis, and network compliance. Before joining Skybox Security Dr. Lotem was a co-founder of Estimotion Ltd., and held R&D management positions at Amdocs and Technomatix Technologies. He holds a masters degree in Computer Science from Tel-Aviv University and a Ph.D. in Computer Science from the University of Maryland.

Moshe Raab, Vice President, Research and Development
Moshe Raab, Vice President, Research and Development, Skybox Security

Moshe Raab, Vice President, Research and Development, has over 20 years of experience in software development and is a key component of the Skybox innovative spirit. Moshe joined Skybox in 2003, as Director of Product Management. Prior to joining Skybox Security, Moshe led R&D at Guardium, an IBM company. He also and managed software projects at Log-on Software. Moshe holds both a Master of Business Administration and a Bachelor of Arts in Economics and Computer Science from Bar-Ilan University. 

Ravid Circus, Vice President of Professional Services
Vice President of Professional Services, Skybox Security

Ravid Circus has over 11 years of experience in the IT security and risk assessment industry. As Vice President of Professional Services at Skybox, Ravid is in a pivotal role for Skybox with his leadership of the Professional Services group. Ravid has helped to develop and deploy automated change management processes in major corporations all over the world. Prior to Skybox Security, he worked for Comsec as an information security consultant. Ravid received both his MBA and BSc in Computer Science from Bar-Ilan University.

Justin Coker, Head of EMEA Markets
Justin Coker, Head of EMEA Markets, Skybox Security

Responsible for Europe, Middle Eastand Africa markets. Justin Coker has over 15 years of software sales and management experience with the last 12 years spent in the IT security sector. Prior to joining Skybox Security in 2005, Justin managed Symantec's UK Retail Finance Sector. Justin holds a Bachelor of Arts degree in Business Studies from Manchester University and is a member of the Chartered Institute of Marketing.

Avi Corfas, Head of International Markets
Avi Corfas, Head of International Markets, Skybox Security

Responsible for Latin Americaand Asia-Pacific markets. Avi Corfas has over 30 years of software sales and management experience.  Prior to joining Skybox Security, Corfas was Executive Vice President (Europe, Middle East & Africa) at @stake, a leading information security consulting company. Corfas is a former chairman of EEMA, the European association for e-identity and security, and holds an EMBA degree from France's Haute École de Commerce.