Our site uses cookies to make it work and to help us give you the best possible user experience. By using our site, you agree to our use of cookies. To find out more about cookies and how you can disable them.
Please read our cookies statement

Mandatory cookies

These cookies are essential for the technical operation of and proper functioning of our site  and enable you to register and login, to easily move around our site, and to access secure areas. Without these cookies our site won't function properly.  

These cookies are required



10 May 2019

NTT Security announces new senior management team

NTT Security today announced Matthew Gyde as candidate Chief Executive Officer (CEO) for NTT Security. He has been selected to lead the company from 17 June 2019, subject to a formal approval process, which will conclude on 17 June 2019. Once appointed, Matt will manage NTT Security’s global business. In the meantime, Matt will continue his responsibilities as Group Executive, Security, Dimension Data.

Matthew joined Dimension Data in 2006. His career in IT Security spans almost 25 years across client environments, carriers, manufacturers and systems integration and services companies. A large percentage of his time in the technology industry has been focused on the security space and how platforms need to be implemented, used and managed to ensure that clients’ remain competitive while minimizing their risk in a shifting threat landscape.

Katsumi Nakata, current Representative Director and President, Chief Executive Officer and Member of the Board of Directors at NTT Security, is resigning from his current position on 17 June 2019, to join NTT Docomo Inc.

Updated Executive Positions and Responsibilities as of 17 June 2019, subject to Annual General Shareholders Meeting approval are outlined below.




Representative Director and President, Member of the Board of Directors

Matthew Gyde

Chief Executive Officer

Member of the Board of Directors

Frank Brandenburg

Chief Operations Officer

Member of the Board of Directors

Kazunori Yozawa

Chief Technology Officer

Member of the Board of Directors

Clive Lewis

Chief Finance Officer

Member of the Board of Directors

Tsunehisa Okuno

Member of the Board, Executive Vice President, Head of Global Business, Nippon Telegraph and Telephone Corporation

Member of the Board, Chief Strategy Officer, NTT, Inc.

Member of the Board of Directors

Kazuhiko Okubo

Vice president, Head of Secure Platform Laboratories, Nippon Telegraph and Telephone Corporation

Member of the Board of Directors

Akitoshi Hattori

Senior manager, Global Business Office, Nippon Telegraph and Telephone Corporation

Vice President, Head of Corporate Finance & Governance Department, NTT, Inc.

Audit & Supervisory Board Member

Jun Fujioka

Senior Manager, Finance and Accounting Department, Nippon Telegraph and Telephone Corporation

About NTT Security
NTT Security is the specialized security company and the center of excellence in security for NTT Group.  With embedded security we enable NTT Group companies to deliver resilient business solutions for clients’ digital transformation needs. NTT Security has 10 Security Operations Centers (SOCs), seven R&D centers, over 1,500 security experts, and handles hundreds of thousands of security incidents annually across six continents.

NTT Security ensures that resources are used effectively by delivering the right mix of Managed Security Services, Security Consulting Services and Security Technology for NTT Group companies – making best use of local resources and leveraging our global capabilities.

NTT Security is part of the NTT Group (Nippon Telegraph and Telephone Corporation), one of the largest ICT companies in the world.  Visit nttsecurity.com to learn more about NTT Security or visit http://www.ntt.co.jp/index_e.html  to learn more about the NTT Group. 

Media relations for NTT Security
Paula Averley
Origin Comms
+44 (0)203 814 2941