Greg Lesnewich
Staff Threat Researcher & Tech Lead, Counterespionage at Proofpoint | United States
Greg Lesnewich’s Email & Phone Number
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Staff Threat Researcher & Tech Lead, Counterespionage at Proofpoint in January 2025 - Present
Sr. Threat Researcher at Proofpoint in May 2022 - January 2025
Principal Intelligence Analyst at Recorded Future in December 2017 - May 2022
Analyst at Leidos in July 2016 - December 2017
Year-Long Volunteer at Amor Ministries in May 2015 - May 2016
Operations at Taylor Rental in May 2012 - August 2012
Project Nexus Intern at Amor Ministries in May 2011 - August 2011
University of Mary Washington, Bachelor of Arts (B.A.), June 2026
We secure how people, data and AI agents connect across email, cloud and collaboration tools.
Discover more about Proofpoint
Named Account Manager at Proofpoint
Named Account Manager at Proofpoint
(August 2019 – Present)
HRBP Manager Insider Threat Management
Administration & People Strategy at ObserveIT
(May 2011 – Present)
Staff Software Architect at Proofpoint (Illusive)
Staff Software Architect at Proofpoint
(January 2023 – Present)
Director of Finance at Proofpoint
Director of Finance at Proofpoint
(August 2022 – Present)
Head of HR Israel, Director, Global People Strategy Partner at Proofpoint
Head of HR Israel, Director, Global HR at Proofpoint at Proofpoint
(December 2020 – Present)
Full Stack Developer at Proofpoint
Full Stack Developer at Proofpoint
(December 2018 – Present)
What is Greg Lesnewich email address?
Email Greg Lesnewich at [email protected], [email protected] and [email protected]. This email is the most updated Greg Lesnewich's email found in 2026.
How to contact Greg Lesnewich?
To contact Greg Lesnewich send an email to [email protected], [email protected] or [email protected]. (updated on October 28, 2025)
What company does Greg Lesnewich work for?
Greg Lesnewich works for Proofpoint.
What is Greg Lesnewich's role at Proofpoint?
Greg Lesnewich is Staff Threat Researcher & Tech Lead, Counterespionage
What industry does Greg Lesnewich work in?
Greg Lesnewich works in the Computer & Network Security industry.
