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Our Experience

Four individuals who managed information security operations and implemented key information security programs at a Fortune 15
Company founded CyberEnsure in January 2004.

Collectively the four principals of the firm have over 40 years of
Information Security experience and over 100 years of experience in IT-related fields. This includes:

  • Planning, deploying, and operating of one of the largest corporate Information Security Programs in the country
  • Practical knowledge in all aspects of Information Security
    • Network Security (firewalls, remote access, penetration testing, IDS)
    • Host Security & Access Control
    • Virus and Malware Protection
    • Creation of Policy and Practices
    • Computer Intrusion Response & Vulnerability Management
    • ISO 9000 implementation
    • PCI-DSS Assessments
  • A proven track record
    • Institution of “defense in depth” virus protection and patch management programs in large telecommunications firm
    • Successful dial-in modem compliance program
    • Facilitation of Senior Executive Steering Committee
  • Certifications
    • Partners are Certified Information Security Managers
    • Team members have PCI-DSS QSA certifications

Principals:

Tom Scurrah
Ken Brophy

Harry Zwiselsberger

Byron Stump - Retired

Tom Scurrah, Managing Director

Tom has over 30 years experience in information technology operations, development, and information security. As Executive Director, Tom managed the desk-side services and information security organizations for the IT organization in Verizon’s Domestic Telecom group, the single largest component of Verizon Communications. Tom created and conducted quarterly meetings of the Verizon Executive Security Council, the information security governance body for the corporation. As co-chair of the Information Security Council, a team of security professionals representing all of Verizon’s business units, Tom help construct the 2002-2003 Verizon Information Security Plan. Consisting of four key strategies and 17 programs, the plan increased perimeter protections, eliminated unsecured modems, expedited the application of security patches, and increased the number of third-party penetration tests.

Prior to joining Verizon, Tom was founder and president of The Ennismore Company, a firm which combined information technology and quality management disciplines. The firm specialized in developing performance, productivity, and customer satisfaction metrics for the IT function of Fortune 500 companies.

Tom has presented to a number of organizations, including the American Society for Quality Control, the Data Processing Managers’ Association, and the International Quality and Productivity Center. Tom has also published articles on computing effectiveness for Information Week and has authored a chapter entitled “Strategic Planning for Information Systems” in R.L. Nolan’s Managing The Data Resource.

Tom is a Certified Information Security Manager (CISM). He holds a BA from Amherst College and a Master of Science degree in management from M.I.T.

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Ken Brophy, Director

Ken has an extensive background in Information Security. Before helping to form CyberEnsure, LLC, he was the Director of Information and Network Security (INS) for Verizon Communications, and its predecessor – Bell Atlantic. In that capacity, Ken was accountable for managing all aspects of the Verizon’s IT Information Security programs including network security (firewalls, intrusion detection, remote access), host security (ACF2/RACF); virus and malicious software protection; and vulnerability management (wardialing, vulnerability scanning). His staff consisted of 70 managers and security specialists.

Ken’s ability to successfully manage InfoSec functions and staff was based on hands-on experience. He had previously spent several years as a senior programmer/analyst providing mainframe security software support for a CA-ACF2 environment that spanned several dozen mainframes in multiple datacenters. He has experience with incident response methodologies, security policy/practices, and contingency planning.

Immediately before becoming the director of INS, Ken had been the manager of its critical “Network Security” component. In that capacity, he oversaw the initial deployment of firewall technology at Bell Atlantic.

Ken has presented at both the TheTraining Co.’s Techno-Security Conference and Computer Associates’ CA World conference. He has participated in Infraguard, Information Security Forum (ISF), and Bellcore symposiums.

Ken is a Certified Information Security Manager (CISM). He holds a BS in Business Administration from Columbia Union, and a Master of Science degree in Information & Telecommunications Systems from Johns Hopkins University.

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Harry Zwiselsberger, Director

Harry co-founded CyberEnsure, LLC after 22 years in IT, the last 13 of which were in Information Security.

Most recently, Harry was a Senior Manager in Verizon’s (formerly known as Bell Atlantic) IT security organization, with responsibilities in areas including firewall support, secure e-mail delivery, intrusion detection(IDS) deployment and management, CIRT response team, network security reviews, and compliance monitoring for international outsourcing. Prior to that, through most of the 90’s, he was manager of the organization directly responsible for Verizon’s mainframe security infrastructure.

Harry was directly involved in the creation of Verizon’s network security architecture. He represented Verizon on various committees working on integration of large disparate networks.

Harry’s background for this work was 15 years of solid IT experience, first as an Cobol Programmer, in which capacity he got his first InfoSec experience by being on the team that selected and implemented the first large scale general purpose access control system (CA-ACF2) for New Jersey Bell, one of Verizon’s predecessors. In addition, Harry was instrumental in developing the first security policy for the then named New Jersey Bell and worked to develop the support infrastructure required to manage the CA-ACF2 product effectively from an administrative perspective.

Harry holds CISM and PCI QSA certifications and has participated in a variety of industry forums. He has presented at the Computer Associate’s annual international conference on 5 different occasions, and was an active member and participant on the East Coast – ACF2 User group.

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