Kevin O’Brien

CEO and Co-Founder, GreatHorn
Kevin O’Brien is GreatHorn’s CEO and Co-Founder. Under Kevin’s leadership, GreatHorn has become the world’s leading next generation email security company, analyzing billions of messages and stopping phishing attacks targeting a global customer base of organizations, both public and private. He brings deep industry experience, having been an early member of multiple successfully exited security companies, including CloudLock (Cisco), Conjur (CyberArk), and @stake (Symantec).
Prior to founding GreatHorn, Kevin was Vice President of Marketing at Conjur, where he built the early go-to-market team responsible for initial market positioning and growth. Previously he led product marketing and sales engineering efforts at CloudLock, the leading cloud access security company that now has more than 6 million enterprise users.
In addition to his role at GreatHorn, Kevin serves as co-chair for the Mass Technology Leadership Council’s cybersecurity group, and is a frequent speaker at key cloud cybersecurity and industry events. He has presented at the RSA Security Conference, Xconomy’s What’s Hot in Cybersecurity Conference, Microsoft’s Innovation Outreach Program, the MassTLC Cybersecurity Conference, and has been featured in TechCrunch, NPR Marketplace, Mashable, Forbes, CSO Magazine, and more.
Kevin holds a bachelor’s degree from the University of Massachusetts Amherst, and holds a black belt in Aikido.