DSAC Leadership
Gretchen Burrier DSAC Executive Working Group, FBI Co-Chair
Gretchen serves as the Assistant Director of the Office of Private Sector within the FBI's Engagement Office. In this role, she oversees efforts to strengthen FBI partnerships with the U.S. private sector in the furtherance of U.S. national and economic security. Since October 2023, Gretchen has acted as a Co-Chair of the DSAC Executive Working Group.
Tammy Hutchinson, DSAC Executive Working Group, DHS Co-Chair
Tamara serves as Director, Private Sector Engagement, Department of Homeland Security (DHS), Office of Intelligence and Analysis (I&A) and the DHS DSAC Co-Chair. She leads I&A’s efforts to facilitate intelligence and information sharing with the private sector and oversees several public-private programs, partnerships, and engagements with corporate security leaders to help drive intelligence production and increase awareness of threats to critical infrastructure. She is certified by the Office of Personnel Management as a career appointee to the Senior Executive Service.
John Raucci, DSAC Executive Working Group, Private Sector Co-Chair
John is employed by the Walt Disney Company in Burbank, California, where he is the Vice President responsible for the corporation’s Global Intelligence Program, Threat Analysis, Crisis Management, and the Global Security Communications Center, a 24/7 watch operation responsible for the safety and security of the company and its personnel and property; the global travel safety program, and tactical threat mitigation. He serves DSAC as an Executive Working Group member. He retired from the FBI in September 2012, served as the Director of Global Investigations for the National Football League (NFL) for five years, and then accepted his current position at the Walt Disney Company.
Brenda Heck, DSAC Executive Working Group Member
Brenda has over 38 years of law enforcement, intelligence, and private sector security leadership experience. Following her retirement from the FBI after 24 years of service, she has served in several corporate security executive leadership roles. These include positions at The Walt Disney Company, Caruso, and Madison Square Garden. In her former role at Standard Industries, she was responsible for designing and executing the organization’s intelligence-driven, risk-based security program to protect the company’s people, assets, and operations. She recently served DSAC as Chair of the DSAC Threat and Resilience Information Sharing Committee (TRISC) and now serves as a DSAC Executive Working Group member.
Deirdre Fike, DSAC Executive Working Group Member
Deirdre serves as Vice President of Investigations and Intelligence in Corporate Security at MGM Resorts International, Las Vegas, Nevada, and serves as a Co-Chair of the DSAC Executive Working Group. In her role at MGM Resorts International, she sets the strategy for the leadership and management of enterprise investigations. She oversees Internal, Fraud and Cyber Forensic Investigations, the Workplace Violence Program, Emergency Management, Strategic Intelligence, and the Global Security Operations Center. She is a member of the American Society of Industrial Security.
Sean Stalzer, DSAC Executive Working Group Member
Sean leads cyber security for Dominion Energy which spans 16 states. As the power company to the Pentagon and most of the internet’s data centers, military bases and most three-letter agencies, every day is spent fending off hostile nation states and criminal actors attempting to bring down the power grid. Sean also serves on the Utah Governor’s Cybersecurity Commission and the boards of both the South Carolina Critical Infrastructure Cybersecurity Program and the Virginia Cyber Security Partnership. He currently serves as a DSAC Executive Working Group member.
Greg Bretzing, DSAC Executive Working Group Member
Greg directs Greenbrier’s worldwide corporate security functions with focused emphasis in cyber security and the security of Greenbrier’s international installations; Greenbrier’s worldwide Safety, Risk, and Information Technology programs. In addition, he assists the company in its government relations activities, guiding Greenbrier’s participation in regulatory and legislative matters. Prior to joining Greenbrier, Greg served 22 years at the FBI.
Jeffrey Walker, DSAC Executive Working Group, Committee Chair
Jeff serves as the Chief Security Officer (CSO) for International Flavors & Fragrances a Fortune 500 company with locations in over 45 countries supporting their four business units, Food Ingredients, Health & Bioscience, Scent, and Taste. He oversees physical security, travel risk management, workplace violence, crisis management, and security investigations with lead roles in insider threats, and trade secrets/intellectual property investigations. Jeff is an active member of ISMA, OSAC, and ASIS. Prior to joining IFF, Jeff served 22 years at the FBI and a total of 30 years in law enforcement. He currently serves DSAC as Chair of the Membership and Engagement Committee (MEC).
Tony Strickland, DSAC Executive Working Group, Committee Chair
Tony Strickland is Chief Security Officer of CSL Limited, a global biotechnology company with a dynamic portfolio of life-saving medicines, including those that treat hemophilia and immune deficiencies, as well as vaccines to prevent influenza. In this role, Tony has responsibility for protecting the company’s people, intellectual property, and supply chain, as well as incident management and investigations. Since joining CSL as its first-ever Chief Security Officer, Tony has been the architect of the company’s protection strategy, related governance frameworks and enterprise security risk-assessment processes. He also has built the organization’s global, enterprise-wide Security team from the ground up to support both of CSL’s operating businesses, which include CSL Behring, Seqirus, and newly acquired Vifor, a leader in iron deficiency and iron deficiency anemia therapies. He currently serves DSAC as Chair of the Education and Training Committee (ETC).
Joe Doa, DSAC Executive Working Group, Committee Chair
Joe Doa serves as the Vice President of Security for MGM Resorts International’s Regional Operations. He is responsible for the oversight of all security operations for the company’s properties outside of Las Vegas (Domestic and International). Mr. Doa joined MGMRI in 2019 as the Vice President of Security for MGM National Harbor prior to taking on the oversight of all regional operations. In that role, he coordinated all security and criminal investigative functions at the fully integrated resort outside of Washington, DC. Mr. Doa is a member of the American Society of Industrial Security International (ASIS) in which he currently serves as the Vice Chairperson of the Gaming & Wagering Protection Community. He has previously served as the Chairperson of the Hospitality, Entertainment and Tourism Security Council. He currently serves as the Chair of the DSAC TRISC (Threat and Resilience Information Sharing Committee) fostering strong public and private sector relationships.