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 Expert  719758

Expert in Application Security, Web Security, Network Security

Available for your Consulting and Expert Witness Needs

Maryland (MD)
Education Work History Consulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

Expert has expertise with complex operating systems. He was a principal developer of variants of SYSTEM V and BSD UNIX including AIX (IBM's UNIX offering), and has worked in the UNIX marketplace as a developer, manager, instructor, and consultant for over 10 years. He is extremely knowledgeable regarding the internals of UNIX, AIX, as well as OSF/1 and MACH. Expert's favorite application of operating system technology is in its application to performance engineering. He has considerable experience as principal designer of several performance measurement products and provides expert consulting in the areas of system and application tuning.

operating system


UNIX operating system


AIX operating system

Expert was the chief architect of a family of products that form the core of an access control system for complex computer systems. The system provides API level reference monitoring, entitlements processing, and non-repudiation services as well as transparent protection for TCP/IP-based client-server applications as well as web-based applications.

access control system

Expert's experience in developing products for the computer software industry makes him intimately familiar with the challenges of computer security systems, as well as commercial offerings that can be brought to bear on these issues.

computer security system


information security


software security system

Expert has architected and implemented a comprehensive solution providing both transparent and direct protection of data. This includes secure transmission of data and secure storage. Extensive use of cryptography, auditing, and reporting can be employed in tracking, centralizing, implementing or improving existing data protection.

data protection


internet security


computer network security


application security

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Philadelphia, Pennsylvania;  Reading, Pennsylvania;  Lancaster, Pennsylvania;  Baltimore, Maryland;  Frederick, Maryland;  Gaithersburg, Maryland;  Camden, New Jersey;  Vineland, New Jersey;  Wilmington, Delaware;  and Alexandria, Virginia.

Year   Degree   Subject   Institution  
1982   MS   Computer Science Engineering   San Jose State University  
1980   BA   Talmudic Law   New Israel College  

Work History:
Years   Employer   Department   Title   Responsibilities

2002 to 2005




Product Development


Software Engineering Manager


Expert develops and enhances the "Secured User" product family providing identity management, and seamless security for users, applications, systems, and networks.

2000 to 2002








He developed the VACMAN Enterprise Security Suite, incorporating transparent web and application security. He implemented and managed deployments exceeding 250,000 users.

1996 to 1999




Product Engineering


VP Technology / RD


He designed and developed DCE/Sleuth (network monitor/decoder), and SnareWorks (security infrastructure), later acquired by Vasco Data Security.

1994 to 1995


Landmark Systemss


Performance Engineering


Principal Engineer


Expert developed TMON/UNIX Performance series, distributed performance monitors.

1991 to 1993


Strategic Software Group



Principal Architect


He developed the first commercial UNIX performance monitor (later acquired by Landmark Systems).

1990 to 1991


Open Software Foundation/X-Open




Lecturer, Course Developer


1988 to 1990


A&T Systems



Chief Architect


1986 to 1988


Locus Computing



UNIX Kernel Developer


Government Experience:
Years   Agency   Role   Description
2001 to 2005   Department of Health   Architect   Expert architected and implemented a solution for managing provider and patient rights that is deployed across 70 DOD health providers (CHCS II).

Consulting Services:
Selected Consulting Examples:
  • Expert was responsible the implementation of a product in customer settings that enabled approximately 20 clients to take security software into full deployment (company/campus-wide).
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Expert acted as an expert witness for a suit between IBM and Compuware covering patent infringement in the areas of UNIX performance engineering.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Years   Country / Region   Summary
1997 to 2002   Japan, Britian, France, Italy, Sweden, Australia, New Zealand, and others   Expert provided training and lecturing on advanced security technologies, and on implementation practices.

Language Skills:
Foreign Language   Description
Hebrew   Expert can speak, read, and write Hebrew at a "good" level.
Spanish   He can speak and read Spanish at a "fair" level.

Additional Skills and Services:

He developed and delivered courseware in advanced operating systems (Microkernel, Unix), and in application/network security (DCE, Kerberos) across the globe.

Other Skills and Services

Expert started two software companies and was successful in selling both companies. He acted as the engineering manager, chief architect, and product manager for both concerns. In addition, he also architected, planned, and implemented various customer installations covering the following security areas: single sign-on, application security, and security compliance regulations.


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