Management Team

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Muky Cohen / Founder - President

Muky has decades of experience in security management, design and consulting. A veteran of the Israeli Defense Forces Special Airborne Combat Engineering Platoon, he later joined the Israel Security Agency as a security agent protecting Israeli assets in Europe and the Merchant Marine. In 1984, he opened a security company in Los Angeles dedicated to providing high level executive protection services. In 1992, he launched the Chameleon Group, specializing in high-end investigation services. Now Chameleon Associates is a brand leader in security consulting and anti-terrorism training for private and public clients, worldwide.

Amotz Brandes

Amotz Brandes / Managing Partner

Amotz began his career in an Israeli Defense Forces Special Forces Reconnaissance Unit. Later, he joined El Al Airlines as a Security Agent & Profiler. In 2002, he established Chameleon’s Training Department in the wake of 9/11, and has since been training private, public and military sectors in Predictive Profiling, Security Questioning, Insider Threat, Proactive Security and more. For over a decade, he has managed security projects for clients in various industries including; aviation, mass transit, schools and universities, government facilities, manufacturing plants, retail and much more. Amotz has BA Degree in Intl. Development Studies at UCLA.

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Allon Knetemann / Director - Europe

Allon began his career at JKC where he was in charge of day-to-day security operations as well as emergency preparedness and procedures. Subsequently, he was brought on as an expert instructor for a Security Organization to deal with specific threats at various locations and events, for the creation and deployment of both overt and covert measures and where he had full responsibility for the operational execution of security plans. He studied Information Technology and Security at Fox-IT, and Human Technology at Hanzehogeshool Groningen. He speaks Dutch and English fluently.

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Kim Langton / Director - Australia & New Zealand

Kim is Managing Director of Chameleon Associates (Australia) Pty Ltd. Kim has over 30 years security and emergency services experience, including service with the Royal Australian Navy, Queensland Fire and Ambulance Services and has held senior management positions in Australian security and hospitality industries. Kim has trained Chameleon clients in Asia and South Pacific for the last 10 years. He has specific expertise in the hospitality industry, holding Security and Safety Management positions with the Sheraton and Accor hotel groups and Corporate Security Manager - Papua New Guinea region, for the Southern Pacific Hotels Corporation.

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Sara McEathron/ Director - Security Quality Assurance Manager & Trainer

Sara McEathron has 20 years in the private security industry ranging from supervising and training teams to protecting diplomats in austere environments. A veteran of the U.S. Army, Sara has served in two foreign wars, provided relief for hurricane victims in El Salvador, and trained Zervany in Northern Iraq as a private contractor for the Department of State. She has an Associate of Science in Criminal Justice, a Bachelor of Arts in Psychology, and is currently pursuing a Master of Business Administration. Sara has been a manager with Chameleon Associates since 2014, training and enhancing the overall quality of security services for clients in Texas.

Avi Katz Mgmt Team

Avi Katz / Senior Consultant & Trainer

Avi has decades of hands-on experience in aviation security, intelligence operations, behavioral observation techniques, security management and training. He served in the Israeli Defense Forces (IDF) Golani Brigade, and later as a GSS Field Intelligence involved in clandestine intelligence operations, HUMINT source operations, and counterterrorism and counter espionage activities. Clients he has worked with include World Trade Center, U.S. Army and L.A. Sheriff. He earned a BA in Political Science from Haifa University and an MBA from Beer Sheva University. He is fluent in Hebrew, Arabic, English and German.

Dr. Dov Paz

Dr. Dov Paz / Clinical Psychology Consultant

Dr. Paz is a veteran of the Israeli Defense Forces where he served as a Military Intelligence officer. After discharge, he consulted in organizational psychology.  In the U.S., Dr. Paz has worked as a neuropsychologist for various agencies and in private practice. These roles included heading a 98-bed psychiatric unit inside a high security prison. He specializes in Forensic Psychology.  At Chameleon, he has conducted psychological profiling in cases involving high net worth clients and celebrities.  His academic focus is stress management and high performance decision making.   He received his M.A. in Organizational and Social Psychology from Bar-Ilan University and his Ph.D in Clinical and Neuropsychology from the California School of Professional Psychology, Los Angeles.

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Peter Crabbe / Senior Consultant & Trainer

Peter began his career working in the Illinois Department of Corrections' Juvenile Probation Division. After moving to Los Angeles, he provided security for Wavelength, a Malibu-based addiction center. Later he served in an executive protection role providing security for prominent CEOs and their families. He has also been involved in under-cover investigations, coordinating with the DOJ, gathering intel, and conducting surveillance in an 18-month investigation netting several arrests and convictions. At Chameleon, Peter helps manage our red team program for academic clients, as well as conducts security training and threat assessments. He earned a B.A. in Communications with honors from Principia College.

Mark Randol

Mark Randol/ Security & Intelligence Consultant & Trainer

Mark has over 35 years of military and civil service ranging from assignments with the USAF in Asia and Europe, to working at the NSA, with Army Intelligence Staff at the Pentagon and as Director of Counterterrorism Policy at DHS. At theTSA, he was a civil aviation security manager and at the FAA an Intelligence Analyst. As a Senior Specialist in domestic intelligence and counter terrorism at the CRS he provided Congress with nonpartisan research and analysis. Mark earned his BA in Social Science at UC Berkeley and an MA in National Security Studies at Georgetown University. He currently teaches at EKU and at USC.

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Simon Wurms / Security Quality Assurance & Trainer

Simon’s career began in security high-risk facilities. For over twenty years, he has put proactive security methods, knowledge of physical security measures and counter intel to work. In 2012, he was asked to provide training in Security Questioning, Proactive Threat Assessment, Red Teaming, Krav Maga and more for high level governmental clients in Europe.

In 2013, he joined Chameleon as a SQAM working for both government and private sector clients. Simon is fluent in Dutch and English.


David Otte / Security Quality Assurance Manager & Trainer

David served over 32 years with the Massachusetts State Police and worked in a wide variety of assignments from patrol, investigations, supervision, and upper management. He was in Internal Affairs for 5 years before promotion to Commandant of the Academy where he oversaw the department's technical services and then the it’s disciplinary, promotional, and background investigation processes. David has an MBA from Bentley University, and a Master’s degree in Criminal Justice Administration from Western New England University. He also attended Session 202 of the FBI National Academy and the Harvard Kennedy School program for Senior Executives in State and Local Government.

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Harold Stivala / Security Quality Assurance Manager & Trainer

Harold Stivala has over 27 years’ experience as an Army Officer in the Armed Forces of Malta. He has led Airport Security, Maritime and Infantry units and was an Operations Officer for maritime law enforcement and search and rescue operations. As a Colonel, he was also responsible for training, logistics and long term procurement. He was appointed CEO of the Humanitarian Hub during the 2011 Libyan Crisis.  Mr. Stivala was the Physical Security Manager at De La Rue Currency in Malta.  He is a Graduate of the Infantry Advanced Course at Fort Benning, Georgia, took the European Security and Defence Policy High Level Course and attended the Italian Joint Staff College in Rome.

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Dr. Douglas Shipley / Security Quality Assurance Manager & Trainer

Doug’s law enforcement career spanned 28 years. He retired as a Supervisory Special Agent with the FBI, having also worked as a police officer, Field Training Officer, and instructor for the Kansas City PD. He also served as a training instructor at the FBI Academy, as Assistant Inspector, and as a Field Supervisor. He was a member of the SWAT team and took part in numerous security details and site surveys. Doug has conducted security assessments and training in the U.S., Central America, the Caribbean, Africa, and Middle East.  He earned a bachelor’s degree in Administration of Justice, a Masters in Education - Training and Performance Improvement, and a Doctor of Business Administration - Leadership. He is conversant in Spanish.

Nathan Aucoin

Nathan Aucoin / Security Quality Assurance Manager & Trainer

Nathan is a retired Marine Corps Weapons Officer, having served 21 years on active duty. His assignments included combat tours in Iraq and Afghanistan with training deployments to Japan, Korea and Egypt. Additionally, he served as an instructor at the School of Infantry, teaching both Squad Leaders and Platoon Sergeants. After his discharge, he conducted security in areas such as Baghdad and Mogadishu; work in these areas included firearms instruction and providing personal security. He holds a BS in Homeland Security/Emergency Management and is working towards an MA in Emergency Management with a focus on terrorism and the evacuation of U.S. personnel overseas in a natural or man-made disaster.

Carlos Gonzalez

Carlos Gonzalez / Security Quality Assurance Manager & Trainer

Carlos retired from the U.S. Air Force where he served for 20 years, including combat tours in Iraq and Afghanistan.  He began as a military Police Officer and soon transitioned to become an elite weapons instructor with the Special Tactics unit, where he trained Rangers and other Special Forces on munitions, demolitions, tactical driving and more. Carlos has extensive training and experience that includes anti-terrorism, advanced urban combat, sniper and pathfinder, as well as  advanced Glock and SOCOM armory. Carlos joined Chameleon in 2021 to provide security assessment and training for our clients in Texas.  He holds a BS in Criminal Justice and is fluent in English and Spanish. 

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Anna Polishuk / Business Development Manager

Anna began her career as a business analyst, working for decades in the financial and entertainment industries.  In 2002, she joined Chameleon’s ranks where today her focus is on growing the business and generally getting the word out.  Anna earned her MA in Journalism and International Studies at the University of Florida. She is conversant in French, Hebrew and Spanish.