Talon Companies offers one of the finest teams of security experts on the globe. Each member of our team brings a deep knowledge in their respective areas of service, the professional tools and expertise needed to execute the most challenging assignment and, collectively, decades of devotion to their clients and our Country.


C.E.O. – Talon Companies
President – Secure Strategies International, LLC

Dedicating 22 years to the United States Secret Service, Ron Williams had the opportunity to work and supervise all divisions of the SS Treasury department in the Los Angeles Field Office. Gaining a wealth of security expertise and a highly regarded reputation within Federal Law Enforcement, Mr. Williams decided to start Talon Executive Services, Inc., a corporate security and investigations company. As a Secret Service Agent, Mr. Williams supervised the credit card and financial fraud squad, the counterfeit squad, and the elite Counter Assault Team (CAT) to combat terrorism. As the Lead Advance Agent, Mr. Williams was responsible for all advance security plans and logistics coordination for Presidential, Vice-Presidential, and foreign heads-of-state visits to Los Angeles. He personally protected Presidents Ford, Reagan, Bush, and Clinton, as well as such noted dignitaries as Queen Elizabeth, Yitzhak Shamir, and Pope John Paul and was the recipient of numerous awards including the United States Secret Service Director’s Award for Special Achievement on eight occasions.

Focusing on the company he founded in 1994, Talon Executive Services, Inc., Mr. Williams has created a highly advanced team of former Secret Service and F.B.I. agents as well as other federal, state and local law enforcement officers. Threat assessment and physical site surveys performed by Talon include venues such as public transportation, entertainment and pharmaceutical. As a RAM-w certified agent, he performs threat assessments and develops remedial measures for water districts, identified as one of the nation’s critical infrastructures. Because of his expertise in the field of anti-terrorism, Mr. Williams was asked by the California Gubernatorial delegation in 2002, to meet with Tom Ridge regarding homeland security. His association with AFAUSSS (Association of Former Agents of the United States Secret Service), ASIS (American Society of Industry Security), ATAP (Association of Threat Assessment Professionals) American Water Works Association (AWWA) Association of California Water Agencies (ACWA) to name a few, keeps him abreast of all matters involving security and threat assessment. He is also an active member of the FBI’s InfraGard program, U.S. State Department Overseas Advisory Council (OSAC) and OCPST (Orange County Private Sector Terrorist Response). Mr. Williams frequently appears on Fox News Channel as well as other national shows as a security analyst and terrorism expert. He was also the keynote speaker at the 1999 Alabama Governor’s Conference on Violence in the Workplace Prevention, has made presentations to the California Association of Water Agencies which included a White Paper, and continues to educate organizations on various security issues through specialized seminars and training.


President – Talon Executive Services

Mr. Mozian’s corporate investigations/security experience spans more than fifteen years and covers a diverse range of disciplines to include fraud investigations, undercover drug/ theft investigations and workplace violence prevention. Mr. Mozian is an expert at conducting corporate internal investigations that detect, assess and resolve issues of malfeasance in the workplace.

As a result of extensive field experience, Mr. Mozian has developed a specific emphasis on mitigating the civil liability to the client that can arise as a result of an internal investigation while simultaneously yielding a better than 94% confession rate during investigative interviews. These results are achieved through the use of a proprietary investigation/interview technique that has been developed to meet the specific needs of businesses and labor attorneys alike.

Mr. Mozian’s background experience and training in the disciplines of security and investigations began during his years in the U.S. Army as a field intelligence specialist and has continued through his career postings with several corporate internal investigation teams.


Director of Operations

Kain Guercci came to Talon Executive Services with investigative and security experience spanning more than fifteen years earned throughout the nation and the world. Prior to joining the Talon Team, Mr. Guercci’s experience included fugitive recovery, as well as executive protection of celebrities, dignitaries, and corporate clients. As operations manager for Talon Executive Service, Inc., he is responsible for managing field operations, including Talon’s undercover operatives, executive protection teams, fielding and qualifying armed agents and security officers, and conducting field advances for corporate and celebrity protection. Bringing to the Talon Team a wealth of experience in fraud and malfeasance investigations, Mr. Guercci yields a 94% confession rate during investigative interviews as a result of a proprietary interview technique designed to meet the specific needs of the client’s corporate environment. Mr. Guercci is trained as a mixed martial artist in the disciplines of Muay Thai and Brazilian Jiu-Jitsu and is highly trained in CQB firearms techniques.


Lead Background Investigator

Shelley Miner has been leading Talon’s background and due diligence investigations division for more than 15 years. Her clients include large national and international organizations, smaller privately-owned companies, and everything in between. Ms. Miner’s approach combines technological resources with investigative acumen to access appropriate information from reliable government & private sector sources, and then analyzes, identifies & verifies relevant records. Whether screening new employees, preparing for court, threat assessments, or entering into a new business deal, Ms. Miner equips her clients with the information they need to protect their most valuable assets – their people.

Ms. Miner is an active member of NAPBS (National Association of Professional Background Screeners) and has earned FCRA (Fair Credit Reporting Act) certification through that organization. Prior to joining Talon Executive Services in 2002, Ms. Miner worked as an Asset Protection Analyst for White Cap Construction Supply, and as an Interview Coordinator and Transcriptionist for Confidential Management Services.


Special Consultant

Dr. Manny Tau is a clinical & forensic psychologist specialized in threat assessments and active threat management, and a Certified Threat Manager™ by the Association of Threat Assessment Professionals. He has been extensively used as a workplace/school-place/personal violence and threat management consultant throughout the United States. He also works with many recognized federal, state, county, city and private organizations in the development of their violence prevention programs and the implementation of Threat Management Teams, along with providing expert consultation and testimony for attorneys in the labor & employment, civil and family law arenas. Dr. Tau has 20 years of experience performing threat assessment and threat management services in the private and public sectors, which included support of law enforcement agencies and professional security firms.

He has provided trainings related to threat assessments and threat management, which included presentations/trainings for the California Bar Association (The State Bar of California 83rd Annual Meeting, September 2010), the Association of Family and Conciliation Courts (California Chapter Annual Conference, February 2012), the Supreme Court of Nevada (Nevada Family Jurisdiction Judges 2014 Conference, March), the Orange County Intelligence Assessment Center (OC Shield, November 2014), the San Diego Sheriff’s Department Threat Assessment Group (March 2015) the Association of Threat Assessment Professionals (Annual Threat Management Conferences, August 2015 & 2016) and the Federal Bureau of Investigation (18th Annual Violent Crime Behavioral Analysis Seminar, August 2016). Dr. Tau currently serves on the Board of Directors for the Association of Threat Assessment Professionals, San Diego Chapter, CA.

An experienced and dynamic speaker, Dr. Tau has presented nationwide on topics related to threat assessments and targeted violence for professional organizations in the Human Resources, Risk Management, security, legal and mental health fields, and has appeared in newsprint, radio, television and Internet media. Dr. Tau was also an invited TED Talk speaker for TEDx Mission Viejo in October 2016.


Special Consultant

Mr. Hahn is self-employed as R. Hahn & Company, Inc. Through the company he conducts security consulting and private investigations. Mr. Hahn also works as a training instructor for the U.S. Department of State Anti-Terrorism Assistance Program. He is an instructor in Critical Incident Management, Major Case Management, Interdicting Terrorist Activities and Post Blast Investigation as well as other courses. He has developed course materials and training exercises for the State Department and for private clients.



Special Consultant

Combining a diverse background in business operations and information technology, Mr. Todd Stefan is working to craft the future of the information security industry though the development and innovation of strategic programs to enable business through effective risk mitigation and business-centric security controls.

During Mr. Stefan’s career, he has had the privilege to chart and develop the strategic course of large enterprises, including government agencies and Fortune 2000 customers, to continuously and measurably manage and mitigate risk while protecting the most important digital assets and their customers’ private information from critical threats. As a recognized information security pioneer and entrepreneur, Mr. Stefan is a frequent participant and speaker at major industry conferences. Mr. Stefan graduated from the USC Marshall School of Business.


Independent Consultant

John Callahan is a cybersecurity and emerging technologies consultant with nearly 20 years experience protecting high value, high exposure digital assets and systems; transitioning innovation for new operational uses; and building education programs to support a next generation workforce.

Callahan currently serves as the co-director of the San Diego State University Cyber Tech Academy, a fully online certificate platform designed to grow and sustain a highly qualified cyber workforce. Cyber Tech Academy will have dozens of programs to prepare students in topics involving cyber security and emerging technology, ranging from novice to expert level courses to support the State of California’s goal of producing over 50,000 new practitioners in the next decade. Prior to arriving at SDSU, Callahan helped create the Informatics Program at the University of Southern California Viterbi School of Engineering, along with three Masters degrees, and the University of San Diego Center for Cyber Security Engineering and Technology.

Callahan also serves as Chief Technology Officer for Partnership Solutions International, a firm specializing in the utilization of machine intelligence, blockchain and smart contract technology to advance proprietary forensics supply chain modeling. PSI’s premier product, Checkmate, has been utilized in over 300 classified Department of Defense and Intelligence Community missions against sophisticated, nation-state level adversaries, as well as to support numerous Fortune 500 organizations. Prior to his work with PSI, Callahan has consulted with dozens of government and industry organizations on topics ranging from cyber security to counterterrorism to entertainment, as well as leading millions of dollars in sponsored research.


Independent Consultant

Mr. Sharpe is a long time (+30 years) Cybersecurity and Privacy expert with real world operational experience. Unlike many people in this space Mr. Sharpe has run P&Ls up to $60M and has spent much of his career helping large corporations and government agencies reap the rewards afforded by advances in technology (Digital Transformation). This provides him a pragmatic understanding of the delicate balance between Cybersecurity, Operational Effectiveness and the business realities.

He began his career at NSA moving into the Management Consulting ranks building practices at Booz Allen and KPMG. He subsequently co-founded two firms including successful exits. He has participated in over 20 M&A transactions and has subsequently delivered to clients in over 20 countries on 6 continents. Mr. Sharpe holds degrees in Electrical Engineering, Management and Business from New Jersey Institute of Technology (NJIT), Johns Hopkins University (JHU) and Columbia Business School. He is a published author, speaker, instructor and advisor. He serves on industry forums and is a mentor at an incubator.


Independent Consultant

Gregory Wessel is a skilled Senior Executive technical leader with 40 years of intelligence experience working for the National Security Agency and over 6 years working in the commercial arena. An innovative, out of the box thinker, that is an expert in Computer Network Operations (Computer Network Defense, Computer Network Exploit and Computer Network Attack). During his time with the NSA, Mr. Wessel held several Technical Executive leadership positions and was responsible for creating Red (attack) and Blue (defend/evaluate) teaming in the Intelligence Community while serving as the Technical Director in the System Network Attack Center in the Information Assurance Directorate. He was responsible for the development and implementation of numerous networking methodologies and technologies. He was also involved in the making and breaking of codes (cryptography). Mr. Wessel had the opportunity to brief Cyber initiatives to many high profile people and organizations including Janet Reno, DOJ, Robert Mueller, FBI, Admiral Prueher, CINCPAC, the Joint Chiefs of Staff, Capital One Bank, Chase Manhattan Bank, and many Security Conferences.

Since leaving the Government in 2013, Mr. Wessel is a Senior Technical Consultant and Advisor for many companies. Currently he is consulting with Talon Cyber Tec LLC. Mr. Wessel provides technical advice and guidance on Cyber Security, Cloud Security, Artificial Intelligence and Machine Learning, Networking, and Analytics. Mr. Wessel also assists with Business Development. He is a Senior Advisor to Recorded Future (Cyber Threat) and Tamr (Data Analytics), two Cambridge, MA start-up companies. Prior to becoming a consultant in 2018, Mr. Wessel was Vice President of Network Architecture at Bay Microsystems/vCinity (a network appliance product that moves and accesses data rapidly). He was part of the team of System Engineers responsible for product strategies and encryption, as well as aiding in the sales process of Bay’s Wide Area Network Traffic acceleration hardware. From 2014-2016 Mr. Wessel was COO/Vice President of Operations at Nehemiah Security/Triumfant (an endpoint security product company). He was responsible for prioritizing customer, employee, and organizational requirements, cascading the organization’s strategy/mission statement to the staff, and developing and implementing the remote monitoring of customers networks/endpoints for vulnerabilities. He also acted as the CISO and implemented a small company security plan. Mr. Wessel is a board member for the Institute for Cyber Threat Defense. He holds a Bachelor of Science in Computer Science from the University of Maryland College Park, and a Master of Science in Computer Science from Johns Hopkins University, as well as certificates in Computer Science and Cyber Security.