Top Cybersecurity Leaders

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At Cox Enterprises, David McLeod focuses on collaboration across the enterprise to improve policies, training and incident management.

Chris Novak champions data sharing and research-driven analysis of cybersecurity incidents and data breaches to help the entire industry become safer.

Mark Dunkerley believes a few critical components to a successful cybersecurity program and career are trust and knowledge sharing.

Cummins CISO Diego Souza focuses on communicating risk and security to the organization & developing cybersecurity leaders.

Operational resilience, successful supply chain management, workplace prevention and more: check out Security magazine's top stories of 2021, chosen by the Security Editorial Team.

Security magazine is pleased to present our inaugural Top Cybersecurity Leaders for 2021. Security partnered with (ISC)², the world’s leading cybersecurity professional organization, to find enterprise information security executives who have made and continue to make significant contributions in the cybersecurity space to their organizations and the security profession. They were nominated by their colleagues and associates, and were chosen based upon their leadership qualities and the overall positive impact that their cybersecurity projects, programs or departments have had on their shareholders, organizations, colleagues and the general public.

While Ira Winkler’s tenure as CISO within Skyline Tech Solutions has been short, he has made a significant impact. In October 2020, he took over a security department that lacked leadership, as it grew organically out of a successful network and IT services operations.

Spencer Wilcox first started his career in cybersecurity while in law enforcement in the Commonwealth of Virginia. With training in computer forensics and cyber investigations from the Federal Bureau of Investigation (FBI), Wilcox transitioned to the energy industry at Constellation Energy as a DFIR (Digital Forensics and Incident Response) investigator and has held positions in cyber and physical security leadership ever since.

At Safelite Group, an American provider of vehicle glass repair, replacement and recalibration services, headquartered in Columbus, Ohio, Grant Sewell has built the security team from the ground up.

As Director of Information Security responsible for cybersecurity strategy, engagement and architecture at Starbucks, Shawn Harris leads a team of 10 security professionals comprised of principal level architects, security program and management professionals.