Cybersecurity Center Faculty

Harford Community College cybersecurity faculty are industry experts who stay current amidst the rapidly changing world of cybersecurity and are dedicated to training students to do the same.

Students who choose Harford for cybersecurity training will learn from experts who have experienced first-hand how the digital world has evolved and are on the cutting edge of where future needs are taking the cyber industry. If you're serious about cyber and want to make a difference in the security of business, government, infrastructure, and personal data, Harford Community College and its knowledgeable faculty will prepare you in the best way possible while offering valuable insight into the exciting careers that are available.

Faculty Profiles

Dean Bushmiller is the proud recipient of six mission coins for training excellence.  He has led national certification organizations in development, policy, and educational materials for over 18 years. He has presented, consulted, and instructed government, education, military, and private organizations in the US and abroad.

Dean has more than 18 years in the information security industry, including pen testing and risk assessment. With more than 24 certifications, he has worked with organizations including Northrup Grumman, SANS, ISC2, Sirius Computer Solutions, and Cisco. He has been keynote speaker at information security conferences as well as guest speaker at state and local college cybersecurity events and is now serving as the Director of Training and Penetration Testing at Dean is proud of his major cybersecurity accomplishments that include: SME leader of (ISC)² version 8 & 9 CISSP, Author of two Cyber Security books, and one of only twenty CISCO Virtual Learning Professional. He has been awarded the CISCO High performing learning partner three times in five years. He is also proud of his mission coins for training in cyber security.

Dean has a Bachelor’s of Science in Economics and the following certifications: CISSP, CEH, ISSMP, CRISC, ISSAP, CCSK, CSSP, Exin Cloud, CHFIv8, CASP, CVLP, GSEC, CCNA, MCSE 2K Charter, MCDBA, MCSA, MCP, MCT, CISM, PLCOP, PLA, PLCT, and AWR-138-W.

Chris Greco is a retired Air Force Intelligence Officer who served over 20 years in intelligence related positions including analytical, management, and technical positions overseas and in the United States. During this time, he was involved in very sensitive projects that spanned the various disciplines of project management. Mr. Greco then retired from the Air Force as an Air Force O-5 (Lieutenant Colonel) and was an information technology (IT) manager for private industry for several years. Mr. Greco then transferred to the Federal Government, where he was responsible for the security and monitoring of servers located across the United States. Mr. Greco performed various IT Project Management and computer security duties while in Federal Government and retired from Federal Service.

Mr. Greco teaches cybersecurity to senior citizens and has founded an organization called “Silver Hats” which incorporates the senior citizens as trained cybersecurity helpers for those generations above and below them. He also writes cybersecurity and project management articles for his blog, as well as project management and cybersecurity blogs (Project Managers without Borders, and He has written the first children’s book on cybersecurity, specifically addressing passwords called “Granpappy Turtle Talks About Passwords” published by LULU. The international organization for cybersecurity (ISC-squared for ISC2) has noted his book in their publication on information security. He has been asked to speak on cybersecurity at an international conference on computer measurement (the Computer Measurement Group or CMG conference). He also has conducted webinars on project management related topics for

Mr. Greco currently has an active certification as a Computer Information Systems Security Professional (CISSP), as well as several project management certifications.

Madrice Guy holds an AAS in Computer Information Systems, and a Certificate in Programming from Harford Community College, a BS in AIT from University of Baltimore, and an MS in IS from Uuniversity of MAryland Baltimore County. He is  a Certified Ethical Hacker (C|EH) and Certified Network Defense Architect (C|NDA). Madrice is an avid software engineer, working a combined 15 years in industry and government and has taught at the University of Baltimore for some years. At Harford, Madrice teaches courses that prepare students for industry certifications, such as Security+, Network+, and C|EH.

Lee Hewitt brings the complete package to the table: excellent technical, leadership, and communication skills. He holds degrees in both Aerospace and Electrical Engineering as well as 24 certifications. He has delivered 35,000 hours of in-class instruction and continues to hone his communication skills.

Over the past 25 years, Lee has developed an extensive background in program management, engineering, technical leadership, systems architecture, and training involving some of the largest enterprise networks in the world. Lee has provided oversight of detailed technical programs involving 125+ team members and has taken numerous projects through the entire life-cycle process— including several for DoD, CMS, HHS, DOJ, SSA, INS, HCFA, US Military (Government Contracts), and private organizations.

Lee holds a Bachelor of Science in Aerospace Engineering and a Master of Science in Electrical Engineering and multiple industry certifications: PMP, CISSP, ITIL, MCSE (NT), MCSE (W2K), MCSE+I, MCT, CNE, MCP, MCP+I, SCNP, CCNA, EIT, A+, Net+, Security+, INet+, CIW Associate, CIW Professional, CIW Master.

Joshua Pulaski is employed as the Cyber Compliance Branch Chief for the Department of the Army, Mid-Atlantic Region Network Enterprise Center and in his current position, is responsible for the cybersecurity compliance of all Information Technology for the US Army’s Mid-Atlantic Region. Over the past 15 years in IT, Josh has held various positions as a contractor and civilian employee. His experiences span from Service Desk and Systems Administration to Project Management and Change Management, to his current position in Cybersecurity.

Josh has written numerous technical white papers, proposals, and articles for the US Army and has briefed Senior Leaders on the importance of implementing and executing a comprehensive Cybersecurity program. He is on the forefront of the Cybersecurity industry, protecting the US Army from various entities that may threaten the Cyber Superiority of our Country.

He holds a Master’s Degree in Applied Information Technology and a post-graduate certificate in Information Systems Management from Towson University. His certifications include: CompTIA A+, CompTIA Network+, and ISC2Certified Information Systems Security Professional (CISSP).

Josh served in the US Marine Corps and was twice deployed to Iraq. His personal awards include three Navy and Marine Corps Achievement Medals, Iraqi Campaign Medal, Global War on Terrorism Expeditionary Medal, and the Combat Action Ribbon.

Dave Reese is a leading expert in IT classroom training and has 20 years of experience providing technical and seminar training in topics including IT fundamentals (A+, Network+, Security+, Server+), Microsoft Server Administration (Windows Server NT 4.0 – 2012), Network Infrastructure (Cisco Routing and Switching), Network Security (CASP, CEH, Packet Capture and Analysis), Client Operating Systems (DOS, Windows, Linux, Mac, Android), as well as a wide variety of user applications (Microsoft Office suite, Google Apps/GSuite).

Dave’s technical software skills include Windows Serve NT 4.0 through 20012, MS DOS, Windows 3.1 through Windows 10, Microsoft Exchange, Active Directory, DNS, DHCP Microsoft Office Suite 97-2016, Microsoft Project, Visio, Publisher, MS Visual Basic, PowerShell, Ubuntu Linux, Kali Linux, TCPDump, Wireshark, Clonezilla, Ghost Enterprise Edition, Microsoft HyperV, VmWare, and Oracle Virtual box.

Dave’s clients include the Maryland Department of Transportation; the Maryland Department of Education; all branches of the U.S. Military; U.S. Intelligence agencies; commercial enterprises; corporate training facilities; and universities and community colleges.

Dave’s certifications include: A+, Network+, Server+, Security+, MCSE, MCT, CASP, CEH, and CCNA.

Albert Charles Richardson is an adjunct instructor for CIS 135: computer networking.  He earned a BS in Physics from the University of Miami (Florida), a DDS from the Medical College of Virginia, and a MS in Information Assurance from the University of Maryland. In 2005, he retired from the U.S. Navy after 34 years during which he served five years as a Supply Corps logistics officer (including 13 months wintering-over in Antarctica), 14 years as a dentist, six years as the head of a research department, and nine years as the head of Radiology Computer Services. Since 1990, he has managed IT systems including procurement, installation, security, and systems administration of both Windows and UNIX networks. He earned Cisco CCNA and Network+ certifications and has taught college-level academic courses in Algebra, Biostatistics, Research Methodology, and TCP/IP Networking.

Teri L. Weston has served as an adjunct instructor at Harford since 2005. In addition to teaching a wide range of Business courses, she teaches CIS 102: Introduction to Information Sciences, ISS 105: Introduction to Cyber Security, and ISS 222: Computer Forensics. Teri earned an MS in Information Systems and Telecommunications from The Johns Hopkins University and has an extensive background in information technology, both as a consultant and professional IT services manager for companies such as PeopleSoft and Oracle. She has been a global enterprise implementation consultant and managed diverse teams of technology consultants. As a consulting manager, she directed teams implementing application and technology solutions for global clients. Most recently, Teri has acted as a consultant for higher education clients performing ERP, technology and security assessments to provide clients with feedback on improvement options for their networks and infrastructure serving the college campuses.