Page 97 - Cyber Defense eMagazine September 2025

About the Author

Mr. Lewkowicz is part of EY’s Technology Cyber Consulting Service Line
focused on the Retail vertical. With more than 25 years of experience
managing, leading and transforming complex global programs, he works
to partner with EY’s clients by advising, accelerating and running their
programs.

Prior to his role at EY, Lewkowicz served as Executive Vice President and
Chief Services Officer for Optiv. He was accountable for a global
organization of more than 1,600 employees serving a wide variety of client
challenges. He also was responsible for Optiv's India business, Partners & Alliances, and was the Client
Advisory Board chair.

Prior to Optiv, Lewkowicz was the chief information security officer (CISO) for Cognizant Technology
Services supporting their global business, including more than 50 acquisitions. Lewkowicz joined in 2020
as the pandemic was ramping up and was instrumental in navigating the firm through its Maze breach
which included a full rebuild and recovery of the enterprise IT systems.

Prior to his role at Cognizant, Lewkowicz was a deputy CISO at Accenture where he managed a global
team of more than 100 people operating across seven countries. His primary responsibilities included
cyber response, forensic investigations including e-discovery, data loss prevention (DLP), threat hunting,
red team exercises, cyber threat intelligence and cyber metrics and automation. Lewkowicz developed
Accenture’s cyber response program and all functions within it over a 17-year period. During his tenure,
he was also instrumental in the creation of Accenture’s overall information security program.

Lewkowicz holds certifications from ISACA, ISC2 and Open Text/Guidance Software. He has presented
at industry-recognized conferences and local law enforcement information sessions over the past 10
years. He has served on advisory boards for Symantec, McAfee, Seculert, Digital Shadows,
FireEye/Mandiant, ArmorBlox and Immersive Labs. He received his undergraduate degree from DePaul
University in Chicago.

Cyber Defense eMagazine – September 2025 Edition 97
Copyright © 2025, Cyber Defense Magazine. All rights reserved worldwide.