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Alfredo Hickman has over 17 years of experience in the Information Security field. In 2018, they began working at Obsidian Security as the Head of Information Security, where they were responsible for all aspects of security, including information security, product security, and security compliance. Prior to Obsidian Security, Alfredo worked at GIAC as a GIAC Advisory Board Member, SANS Institute as a Mentor, Rackspace as Manager and Team Leader of Security Product Engineering and Product Engineer of Rackspace Managed Security, SystemsSec as Founder & CEO, Center for Strategic and International Studies (CSIS) as a Researcher of Strategic Technologies, Vista International Operations as Team Leader of Network and Systems Operations, United States Department of Defense as a contractor in various technical and leadership positions, and United States Marine Corps as Sergeant of Marines: Infantry.

Alfredo Hickman's education history includes a Master of Science (M.S.) in Information Security Engineering from SANS Technology Institute, which they obtained in 2020. Alfredo also holds a Bachelor of Arts Political Science Magna Cum Laude with Highest, Leadership, and Department Honors from The University of Texas at San Antonio, which they obtained in 2015. Prior to that, they attended San Antonio College. In addition, Alfredo Hickman has obtained numerous certifications, including Learning Threat Modeling for Security Professionals, GIAC Certified Forensics Analyst (GCFA), GIAC Critical Controls Certification (GCCC), GIAC Continuous Monitoring Certification (GMON), GIAC Certified Incident Handler (GCIH), GIAC Penetration Tester (GPEN), GIAC Security Essentials Certification (GSEC) Gold-Level, National Information Assurance Training Standard for System Administrators (NIATSSA) 4013, Information Systems Security (INFOSEC) Professional (NSTISSI) 4011, CompTIA Advanced Security Practitioner ce, Cisco ASA Specialist, Cisco Certified Network Associate, Cisco Certified Network Professional Security, Cisco Firewall Security Specialist, Cisco IOS Security Specialist, Cisco IPS Specialist, Cisco VPN Security Specialist, GIAC Certified Intrusion Analyst (GCIA) Gold-Level, GIAC Certified Project Manager (GCPM), and LPIC 1.