YOUR PARTNER IN CYBERSECURITY

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Collaborating to realize cybersecurity

Together, we secure
the connected future

Securing the connected future

We contribute to the realization of a safe and secure digital society by protecting our customers and community through "Proactive Cyber Defense Services" powered by elite security talent and intelligence.

Business Overview

As the core cybersecurity arm of the NTT Group, we provide 24/7/365 protection for our customers' businesses worldwide. Leveraging threat intelligence analysis and research from our state-of-the-art Global Threat Intelligence Center, we deliver a comprehensive range of services including consulting, Managed Security Services (MSS), and Incident Response (IR).

  • Minimize business impact through early threat detection.
  • Reduce risk by detecting sophisticated threats that may bypass conventional security measures.
  • Rapidly establish cyber resilience through cloud-native solutions.

CEO Message

Shinichi Yokohama, CEO NTT Security Holdings.

As a core strategic cybersecurity company of the NTT Group, our mission is to deliver the extensive expertise and insights gained through decades of defending NTT’s own infrastructure. In an era where Artificial Intelligence (AI) and Digital Transformation (DX) are fundamental to business strategy, our goal is to be a "Cyber Risk Mitigation Company"; a partner that empowers clients to embrace digital innovations by mitigating associated risk.

To achieve this vision, we are committed to strengthening three core pillars:

1. Our human resources: The Foundation of Excellence
I have immense trust in the caliber and scale of our global talent pool. Our professionals combine deep technical expertise with the highest standards of professional ethics. They are the bedrock of the value we provide, and we will continue to invest in our people to ensure we exceed the expectations of our clients worldwide.

2. A Comprehensive and Strategic Service Portfolio
Building on our proven track record in threat detection and incident response, we are expanding our services to address cybersecurity from a business-centric perspective. We provide risk-based security strategies aligned with our clients’ specific business goals, ensuring that security is not just a defense mechanism, but a driver of sustainable growth.

3. Synergy Across the NTT Group
The NTT Group is committed to providing the digital infrastructure essential for the AI era. In close collaboration with our sister companies, we offer integrated security services that are woven into the fabric of AI and DX initiatives. Through this synergy, we aim to be the most trusted partner for navigating the complexities of the modern digital landscape.

We invite you to look forward to the continued evolution of NTT Security Holdings to be a "Cyber Risk Mitigation Company."

NTT Security Holdings’ CEO

Shinichi Yokohama, CEO
CEO

Company Overview

Company Name
NTT Security Holdings Corporation
Location
Akihabara UDX 20F/21F, 4-14-1 Sotokanda,
Chiyoda-ku, Tokyo 101-0021, Japan
Executives
President & CEO
Shinichi Yokohama
Executive Vice President
Taro Sekine
Director
Yoshiaki Nakajima
Director
Masahito Kimura
Audit & Supervisory Board Member
Koji Minami
Audit & Supervisory Board Member
Yoshitaka Ban
Shareholder
NTT Corporation (100%)
Organization Chart
Organization Chart
NTT Security Holdings Headquarters

Leadership

  • Shinichi Yokohama

    Chief Executive Officer

    Chief Information Security Officer – NTT Group

  • Taro Sekine

    Deputy CEO

    CEO Japan

  • Takahito Iguchi

    Chief Financial Officer

  • Gregory Garten

    Chief Technology Officer

    Chief Information Security Officer

  • Takeshi Chawanya

    Chief Administrative Officer

    Chief People Officer

  • Chikara Kondo

    Chief Strategy Officer

  • Fredrik Olsson

    CEO Nordics

Region

  • Japan

    Japan

    Akihabara UDX 20F/21F, 4-14-1 Sotokanda, Chiyoda-ku,
    Tokyo 101-0021, Japan

    Japan: Web Site
  • Europe

    Europe

    Krokslätts fabriker 30 431 37 Mölndal, Sweden

    Europe: Web Site