Prior to joining Zscaler, Sam served as Chief Product Officer and Chief Security Officer at Cybereason. He is a Fellow at the National Security Institute, on the Board of Trustees of the Cybersecurity Coalition, on the Board of Directors for Sequitur Labs, an adjunct professor at Wentworth Institute of Technology and Nichols College and serves as an advisor to several companies.

Previously, he held leadership roles over the last 30 years at RSA, EMC (where he was a Distinguished Engineer), Computer Associates, McAfee, Arbor/NetScout, Danaher and MicroStrategy. Sam also led RSA Labs at MIT, received the 2015 Pillar of CERIAS award at Purdue and has over 17 current patents, is a frequent contributor in the media, maintains a column on Forbes.com and was awarded the 30th Anniversary “Visionary Award” by SC Media.