Elite Protection, Personalized Service

Marc Debrody brings a distinguished career of 28 years in federal and local law enforcement, having retired as a Supervisory Special Agent with the U.S. Secret Service. Throughout his career, Marc conducted over 150 physical security assessments in both domestic and international environments, ranging from residential estates to large commercial venues. His leadership in criminal investigations and protective operations spanned the globe, guiding operational policies and protocols for over 100 domestic and 18 international law enforcement offices.

In the private sector, Marc possesses subject matter expertise in building executive security and protection programs, as well as conducting residential physical, technical, and cyber security assessments. As a Certified Information Security Manager, he partners with family offices and wealth management firms to provide expert guidance, ensuring the safety and security of high-profile individuals, their families, and corporate executives.

Abe Medina brings over 29 years of combined military, government, and private sector expertise, including a tenure at the White House. Abe is a physician assistant with a history of practice in family and emergency medicine. With a background in establishing emergency medical contingencies in dynamic, nonpermissive, and hostile environments, Abe specializes in tailoring healthcare management solutions for prominent individuals and organizations. His proficiency encompasses leadership, clinical operations, and emergency preparedness. He’s had significant roles in the 82nd Airborne Division, 173rd Airborne Brigade, the White House Medical Unit, Soros Fund Management, and the Department of Defense. Abe’s extensive collaboration across government and private sectors ensures robust medical emergency strategies. Recently, he secured a contract as a trauma policy analyst for the Defense Health Agency. He holds a Doctor of Medical Science with a focus on emergency management and global health.

Kevin Walsh brings over two decades of leadership and operational experience from his career as a Special Agent with the United States Secret Service, where he served for 23 years—13 of them in supervisory roles. During his 9-year assignment to the Presidential Protective Division, including 4 years as a supervisor, Kevin managed the team responsible for conducting global vulnerability assessments in support of the President. He also led the Electronic Crimes Task Force in the Atlanta Field Office, overseeing cyber investigations and multi-agency coordination.

Kevin has conducted extensive physical security assessments in both domestic and international settings, including in high-risk and conflict areas. He served as the overall lead advance for numerous presidential visits and played a key role in mentoring new agents preparing for leadership responsibilities in protective
operations.

Before joining Sentinel, Kevin spent five years as the Director of Global Incident Command at SecureWorks, leading incident response teams through major cyber events, including ransomware attacks, data breaches, and insider threats. His cross-domain expertise in both physical and cyber security makes him a trusted partner for clients navigating today’s evolving risk landscape. Kevin holds a Master’s degree in Public Administration with a concentration in Criminal Justice and a Bachelor’s degree in Criminal Justice, both from Marist University. He has received numerous awards for his federal service and regularly speaks on topics related to vulnerability assessments and executive protection.