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Network Monitoring Expert Witnesses

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Dr. Stephen Castell
PO Box 334
Witham CM8 3LP
GBR
phone: 44-1621-891-776
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Dr. Stephen Castell, Chartered Information Systems Practitioner and Member of the Expert Witness Institute, is Chairman of CASTELL Consulting. He is an internationally acknowledged Independent Computer Expert who has been involved in a wide range of computer litigation over many years. CASTELL Consulting, currently in its twenty-fifth year, provides independent professional consultancy and expert services in Computer Systems, Software, Project Management, Strategy, and Contract Disputes, to a wide variety of international clients and companies.

As an Expert Witness in computer litigation, Dr. Castell has acted in over 100 major cases including the largest and longest computer software actions to have come to trial in the English High Court. He is the author of the best-selling Computer Bluff (1983), and of The APPEAL Report (1990) on the admissibility of computer evidence in court and the 'legal reliability' of information systems and technologies (with the CCTA).
6/28/2018 · Computers
The Reg A Conference is the largest gathering of deal-makers and investors interested in Regulation A, a prime opportunity for companies to network with like-minded business executives, as well as financial professionals who assist in bringing capital to companies (https://theregaconference.com/presenting-companies/). Many such companies are today basing their new business ventures and projects, and their search and submissions for funding, on blockchain technology applications. So-called cryptocurrencies such as bitcoin are just one example of the use of this functionality. The business implications of this secure online record-keeping tech are huge – and not only in cryptocurrency. This presentation provides a probing and extensive expert critique of blockchain, its cryptocurrency, distributed ledger and smart contract applications, and argues for a cautionary, savvy approach to implementing and investing in such business systems, on grounds of professional due diligence, rigorous corporate governance and wide experience of past leading-edge ICT systems failures.

8/18/2011 · Computers
The new government has announced the areas that it has identified for dramatic cuts in public spending. One of the most effective reductions should be derived through more professional, better-managed government IT spending.

6/23/2011 · Computers
You are an established, reputable, medium-sized corporation. A year ago your board decided to upgrade your existing computer systems by buying a 'unified package', 'lightly-customised', from a 'solution provider'.

10/9/2009 · Computers
Synopsis of a Talk given to the Association of Independent Computer Specialists

10/8/2009 · Computers
Software implementation contracts are frequently terminated with the software rejected amidst allegations from both supplier and customer, e.g. software/database errors/deficiencies, faulty design, shifting user/business requirements. An important technical issue on which the IT Expert appointed in such disputes is asked to give an expert opinion is: what was the quality of the delivered software and was it fit for purpose?

10/7/2009 · Computers
The Negotiation Competition, now in its fifth year, is a contest open to all law students in England and Wales, designed to promote the skill of negotiation, a crucial component of ADR

8/4/2004 · Computers
I spent much of a whole year recently investigating why a major IT outsourcing deal broke down, and had given rise to the largest software contract dispute yet seen in the English High Court

Disputes over failed software construction projects raise interlinked technical and legal issues which are complex, costly, and time-consuming to unravel – whatever the financial size of the claims and counterclaims, the facts and circumstances of the contract between the parties, or the conduct of the software development

Stephen Castell, PhD
The Forensic Approach to assessing and dealing effectively with IT Projec Risks. TWO-DAY INTENSIVE SEMINAR, WORKSHOP AND CLINIC. NICE, CÔTE D'AZUR, FRANCE. 17th - 19th MARCH 2005
12/7/2009
Commonwealth Telecommunication Organisation (CTO) 2nd Annual Investing In ICTs In Emerging Markets: Examining Business & Investment Opportunities In Developing Economies. 9th & 10th December 2009, Inmarsat Conference Center, London, UK
10/8/2009
The findings of this expert investigation were clearly reported by Dr Castell to the court and (most unusually) were fully accepted by the Prosecution without any need for cross-examination, assisting in achieving a Not Guilty verdict from the Jury.
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Ray Yepes
Director of Forensics and Incident Response
1205 Sam Bass Rd.
Round Rock Texas 78681
USA
phone: 512-255-3700
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Ray Yepes Security Expert PhotoRay Yepes, Director of Forensics and Incident Response at Cyber Defenses, Inc., has over 21 years of experience as a Security Professional and Criminal Investigations Examiner. In addition to many forensic industry certifications, Mr. Yepes is a Diplomate member of the American Board of Forensic Examiners and the American Board for Certification in Homeland Security. He has been a licensed private investigator since 2006.

As a security professional, Mr. Yepes has consulted, designed, maintained, and/or implemented security perimeters, network security architectures, and security policies for small, midsize, and large companies including Fortune 500, 200, 100, and 50 companies.

As a criminal investigations examiner, Mr. Yepes has assisted and advised local and federal government agencies in national security matters and high profile criminal investigations. His first digital forensic investigation dates back to 1995 while assisting the FBI in a child pornography case.

Mr. Yepes has conducted and managed numerous Cyber Security incidents, including but not limited to malware, phishing, password attacks, denial of service attacks (DoS), Man in the Middle attacks (MiTM), drive-by downloads, malvertising, rogue software, social media threats, advanced persistent threats (APT), and other incidents. In response, he has developed and executed information security strategies, advising business areas on security risks.

Litigation Support - Mr. Yepes has conducted over 1,000 Digital Forensic Investigations ranging from complex white-collar schemes, to murder, and economic espionage. He has testified on Computer Forensics, Cyber Security, and eDiscovery matters in federal, state, and local courts. Mr. Yepes has served as board member, Treasurer, and Vice President for the Forensic Expert Witness Association (Houston Chapter) and is fluent in both Spanish and English.

Areas of Expertise:
  • Network Forensics
  • Mobile Forensics
  • Vehicle Forensics
  • Computer Forensics
  • Firewall Appliance Forensics
  • Intellectual Property Theft
  • Industrial Espionage
  • Employment Disputes
  • Fraud / Forgery
  • Bankruptcy Investigations
  • Workplace Email / Internet Misuse
  • Regulatory Compliance
  • View Cyber Defenses, Inc.'s Consulting Profile.
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    C. Matthew Curtin, CISSP
    Founder and CEO
    Columbus Headquarters
    5 E. Long St., 9th Floor
    Columbus OH 43215
    USA
    phone: 614-545-4225
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    C. Matthew Curtin, CISSP Founder and CEO of Interhack is a Certified Information Systems Security Professional. An Expert in Computers and Information Technology, Mr. Curtin and his team at Interhack help attorneys and executives use data and computer technology in high-stakes situations.

    Mr. Curtin's work has been at the cutting edge of the intersection of law and technology. The U.S. Court of Appeals for the First Circuit relied on Interhack's forensic computing practice and Mr. Curtin's expert opinion when it established standards for application of Federal wiretap statutes to Web technology, In re Pharmatrak Privacy Litigation (see link above). Academic references to their work include the Stanford Law Review and university courses throughout the world.

    Mr. Curtin maintains a regular academic appointment as a Senior Lecturer at The Ohio State University's Department of Computer Science and Engineering. He currently chairs the Recruitment subcommittee of the Business Advisory Network that advises the Ohio Department of Education's standards for technology education in secondary and postsecondary schools throughout the state.

    C. Matthew Curtin's services are available for plaintiffs, defendants, and for the courts directly on technical matters.

    Areas of Forensic Expertise:
    • Electronic Discovery
    • Preservation and Forensic Analysis of Data
    • Complex Analysis of Non-Standard Data Sets
    • Investigations
    • Data Breaches
    View Mr. Curtin's Consulting Profile.
    Matthew Curtin
    This book is the story of the formation of the world's most widely-used system to protect sensitive information and how a group of independent cryptographers, civil libertarians, and hobbyists managed to demonstrate the system's weakness in June of 1997, even as the U.S. Congress debated the government's control over cryptography. As one of the coordinators of the DESCHALL project that broke a secret message encrypted with what was then the government standard, Curtin presents a unique insider view of how the project came together and what happened behind the scenes to demonstrate the weakness of the standard and ultimately to usher in the age of unrestricted cryptography.
    Matthew Curtin, Peter G. Neumann
    Suitable for the IP manager or developer seeking to improve Web privacy and security, is an indispensable resource for system administrators and application developers, providing a means to understand, create, and maintain secure Internet systems.
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    Philip J. Isaak, PE, P.Eng., DCDC, RCDD, SMIEEE
    Victoria MN USA
    phone: 952-679-4604
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    Philip Isaak Data Center Infrastructure Expert PhotoPhilip J. Isaak, PE, P.Eng., DCDC, RCDD, SMIEEE, is an expert witness, consultant & trainer in the design, construction, procurement, implementation, commissioning & operations of information technology, telecommunications & critical data center facilities. Mr. Isaak provides clear analysis for complex disputes, incorporating industry standards, best-practices and over 20 years of consulting & training expertise working with clients located in 28 countries and territories across 6 continents.

    In recognition of Mr. Isaak’s professional standing, the Institute of Electrical & Electronic Engineers (IEEE), the world’s largest professional association for advancement of technology, certified him to the grade of Senior Member, a level only 9% of IEEE’s over 400,000 global members hold. Mr. Isaak is also an author of several industry standards published by TIA & ANSI/BICSI, whitepapers published by The Green Grid, and the Data Center Handbook published by John Wiley & Sons.


    Expert Witness ServicesAreas of Expertise
    • IP, Trade Secrets, Contracts Analysis
    • Design, Construction, Implementation Claims, Damages, Defects, Delays, Failure & Quality Control Analysis
    • Failed System Analysis
    • Unfulfilled SLA Analysis
    • Technical Investigations
    • Claims Preparation & Analysis
    • Expert Reports
    • Settlement Opinions & Strategies
    • Deposition & Trial Testimony
    • Cloud Computing Services
    • Colocation Services
    • Construction
    • Data Centers
    • Electrical Engineering
    • Fiber Optic Cabling
    • Forensic Engineering
    • IT Systems Capacity Planning & Forecasting
    • Life Safety Systems
    • Network Systems, Services & Infrastructure
    • Operating Procedures
    • Telecommunications


    View Philip Isaak's Consulting Profile.
    1/11/2018 · Computers
    This is the first in a series of six posts on how to overcome contractual challenges for data center projects. The series will address:

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    Dr. George Edwards
    Computer Scientist
    7958 Beverly Blvd
    Los Angeles CA 90046
    USA
    phone: 323-545-3933
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    George EdwardsDr. George Edwards, Ph.D. is an expert in Computer Software, Internet Applications, Web Technologies, Mobile Phone/Tablet Applications, Digital Video and Multimedia, Medical and Embedded Software, and Aerospace/Defense Systems. He has more than a decade of experience as a scientist, engineer, and technical consultant to academic research labs, government agencies, technology companies, and attorneys.

    Dr. Ewards has authored dozens of articles and papers related to software engineering for scientific journals and industry magazines. He is listed as a co-inventor on two pending patent applications for novel software technology and has served as a software expert witness in patent litigation matters.

    Dr. Edwards teaches a graduate-level course on software engineering at the University of Southern California.

    Dr. Edwards provides expert consulting in the following areas:
    • Intellectual property and patent infringement
    • Software design/source code audit and review
    • Non-performance claims
    • Expert witness and depositions
    Dr. Edwards is an expert in the following technologies :
    • Programming languages & platforms: Java, C/C++, C#, Perl, Python, PHP, .NET, WinForms, WPF, Visual Studio, Eclipse, Java EE, CORBA
    • Internet and web: JavaScript, AJAX, Node.js, Ruby, HTML, XML, CSS, ASP.NET
    • Mobile devices & applications: Android, iOS, iPhone, Windows Mobile, Windows Phone, BlackBerry, Palm OS, Java ME
    • Multimedia: MPEG, SVG, DVR, Silverlight, Flash
    • Operating systems & servers: UNIX, Linux, Windows, Mac OS
    • Networking: IMAP, POP, SMTP, DNS, TCP/IP, HTTP
    • Databases: RDBMS, SQL, MS SQL Server, MS Access, Oracle, MySQL
    • Project management & development methods: Kanban, Lean software development, agile, object-oriented (OO), aspect-oriented programming (AOP), component-based development, COTS integration, requirements engineering, spiral model, UML
    View Consulting Profile.
    7/10/2012 · Patents
    The importance of software patents has increased dramatically in recent years. The high profile patent disputes between Apple, Google, and other smartphone companies have attracted the most attention in the press, but patent battles are being waged all across the software industry.

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    Bhuvan Urgaonkar, PhD
    Available Nationally and Internationally
    W371 Westgate Building
    University Park PA 16802
    USA
    phone: 814-933-7211
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    Bhuvan Urgaonkar, PhD, has over 15 years of experience in the field of Software Engineering and Computers. His work includes research in computer systems software, distributed computing (including systems such as Zookeeper, Redis, Memcached, Cassandra, Kafka), datacenters, cloud computing, storage systems, energy efficiency of computers and datacenters, big data (including systems such as Hadoop, Spark).

    Dr. Urgaonkar has published over 80 research papers in competitive peer-reviewed conferences and journals on these topics with several best paper awards. He has procured research funding totaling more than $3 Million USD from federal agencies and industrial labs (Google, HP, IBM, Cisco, Microsoft, Amazon) to lead and train several Phd and MS students who now work in industry and academia. Dr. Urgaonkar has also delivered lectures on topics including Cloud Computing and Data Centers to Faculty at Microsoft and numerous other technology companies and universities around the world.

    Education / Training: Ph.D. in Computer Science from the University of Massachusetts Amherst (2005) B.Tech (honors) in Computer Science and Engineering from the Indian Institute of Technology, Kharagpur, India

    Awards / Honors: Test of Time Award, ACM Sigmetrics 2016 National Science Foundation Career award, 2010 IBM Faculty Fellowships, 2016, 2014 Several best paper awards (see CV)

    Litigation Support - Dr. Urgaonkar serves as an expert / technical consultant with multiple firms helping them (i) understand technical content related to state of the art products in areas such as content distribution, distributed computing, datacenter design, among others and (ii) interpret patents in these areas and connections between them and state of the art products and services. Services are available to law firms, government agencies, schools, firms / corporations, and hospitals. They include case review, deposition, and trial testimony as needed.

    Areas of Expertise:
    • Software Design and Analysis
    • Computer Systems
    • Operating Systems
    • File Systems
    • Databases
    • Computer Security
    • Performance
    • Distributed Computing
    • Data Centers
    • Cloud Computing
    • Big Data Systems
    • Web
  • Internet
  • Content Distribution Networks
  • Software Reliability and Testing
  • Fault Tolerance
  • Hadoop
  • Spark
  • Kubernetes
  • Linux
  • AWS
  • Azure
  • Machine Learning
  • Scheduling
  • 7/20/2018 · Computers
    Recent technological advances in the development of flashmemory based devices have consolidated their leadership position as the preferred storage media in the embedded systems market and opened new vistas for deployment in enterprise-scale storage systems. Unlike hard disks, flash devices are free from any mechanical moving parts, have no seek or rotational delays and consume lower power. However, the internal idiosyncrasies of flash technology make its performance highly dependent on workload characteristics. The poor performance of random writes has been a cause of major concern which needs to be addressed to better utilize the potential of flash in enterprise-scale environments. We examine one of the important causes of this poor performance: the design of the Flash Translation Layer (FTL) which performs the virtual-to-physical address translations and hides the erase-before-write characteristics of flash. We propose a complete paradigm shift in the design of the core FTL engine from the existing techniques with our Demand-based Flash Translation Layer (DFTL) which selectively caches page-level address mappings. We develop a flash simulation framework called FlashSim. Our experimental evaluation with realistic enterprise-scale workloads endorses the utility of DFTL in enterprise-scale storage systems by demonstrating: (i) improved performance, (ii) reduced garbage collection overhead and (iii) better overload behavior compared to state-of-the-art FTL schemes. For example, a predominantly random-write dominant I/O trace from an OLTP application running at a large financial institution shows a 78% improvement in average response time (due to a 3-fold reduction in operations of the garbage collector), compared to a state-of-the-art FTL scheme. Even for the well-known read-dominant TPC-H benchmark, for which DFTL introduces additional overheads, we improve system response time by 56%.

    6/27/2018 · Computers
    Cloud-based hosting promises cost advantages over conventional in-house (on-premise) application deployment. One important question when considering a move to the cloud is whether it makes sense for 'my' application to migrate to the cloud. This question is challenging to answer due to following reasons. Although many potential benefits of migrating to the cloud can be enumerated, some benefits may not apply to 'my' application. Also, there can be multiple ways in which an application might make use of the facilities offered by cloud providers. Answering these questions requires an in-depth understanding of the cost implications of all the possible choices specific to 'my' circumstances. In this study we identify an initial set of key factors affecting the costs of a deployement choice. Using benchmarks representing two different applications (TPC-W and TPC-E) we investigate the evolution of costs for different deployment choices. We show that application characteristics such as workload intensity, growth rate, storage capacity and software licensing costs produce complex combined effect on overall costs. We also discuss issues regarding workload variance and horizontal partitioning.

    6/7/2018 · Computers
    In this paper, we present techniques for provisioning CPU and network resources in shared hosting platforms running potentially antagonistic third-party applications. The primary contribution of our work is to demonstrate the feasibility and benefits of overbooking resources in shared platforms, to maximize the platform yield: the revenue generated by the available resources. We do this by first deriving an accurate estimate of application resource needs by profiling applications on dedicated nodes, and then using these profiles to guide the placement of application components onto shared nodes. By overbooking cluster resources in a controlled fashion, our platform can provide performance guarantees to applications even when overbooked, and combine these techniques with commonly used QoS resource allocation mechanisms to provide application isolation and performance guarantees at run-time.