Cyber Defense Institute, Inc.

Forte of Cyber Defense Institute

Only humans can counter human-driven threat.

Threats in cyberspace may vary, but Cyber Defense Institute has experts to address the threat. This top-class team, with expertise in various areas and high ethical standards, will surely contribute to society through its high quality technical services.

Our mission:

Cyber Defense Institute is a team of top notch engineers that have come together on a mission to protect the safety of cyber space. All members of Cyber Defense Institute face the threats of cyber space in the front line with high ethical standards and a strong sense of social contribution.

Knowing the attackers:

Attackers today have advanced offensive capabilities. To tackle those threats, we need to know and understand the attackers' minds, and acquire even higher skills. Cyber Defense Institute has the ability to achieve a true defense.

Catching the attackers:

Cyber Defense Institute also has unparalleled forensic technology.

100% prevention of attacks is not possible; however, we definitely hinder attackers from getting their way.

Cyber Defense Institute supports infiltrated organizations through incident investigations, minimization of damage, and containment of attack vectors.

Creating the future of cybersecurity:

Engineers of Cyber Defense Institute are not bound by the status quo of current security technologies. We address challenges, constantly pursuing better methods and innovative approaches.

Through persistent training and research, we resolve issues considered impossible, opening the way to the future of cybersecurity beyond the limit of existing tools or products.

Surpassing customers' expectations:

Cyber Defense Institute sincerely addresses customer's issues in a neutral and fair manner. We aim to exceed expectations with superior technology, unique ideas, aggressive approaches, unparalleled speed and high-quality services.

Company Information

Corporate Name: Cyber Defense Institute, Inc.
Management: Representative Director Kenichi Kashima
Date of Foundation: October 1st, 2008
Capital: 100 million yen
Correspondent Bank: Mizuho Bank, Ltd.
Location: Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Contact: Phone: +81 3 5843 9015 (main phone number)
Facsimile: +81 3 5843 9016
Services: Security assessment (penetration testing for web applications, networks, etc.)
Training services (public and private courses)
Incident response, forensics, security consulting (assessment of software and embedded devices / cyber exercise support)
Sales of security related products
Certified Qualifications: Information Security Management System(ISO/IEC 27001:2013, JIS Q 27001:2014)
Certificate Number: 3233909
Affiliated Organizations: Japan Smart Community Alliance
NPO Institute of Digital Forensics.
Telecom-ISAC Japan
Nippon CSIRT Association
Japan Cybercrime Control Center

Business Partners

  • Zone-H


    A world-famous Non-Profitable Organization (NPO) known as an archive of website falsification and cybercrime.
  • Patch Advisor

    Patch Advisor

    A U.S. security technology company with world-class hacking engineers.
  • Immunity


    Provides services such as product diagnosis, web application diagnosis, source code review, and training. Also develops a unique framework for security diagnosis.
  • FFRI Co., Ltd

    FFRI, Inc.

    Engages in research and development of countermeasure techniques in Japan. Analyzes daily-evolving cyberattack technologies from a unique perspective, and have also presented many research papers in international security conferences.
  • Oxygen Forensices, Inc

    Oxygen Forensics, Inc.

    Provides innovative technologies for analyzing smartphone and tablets. Their "Oxygen Forensic Suite" is widely used in U.S., Europe and Japan.
  • Toyo Co., Ltd

    TOYO Corporation

    Conducting business on a wide variety of security related products, such as countermeasure solutions to protect networks and systems from various cyberattacks.
  • Mandiant


    One of the most famous security technology companies based in the U.S. in the field of incident response and forensics.
  • Packet Ninjas

    Packet Ninjas

    Provides attack and defense solutions such as advanced open source intelligence tools to support identification, correlation, surveillance and tracking of attackers.


Vulnerability Assessment / Penetration Testing

In Cyber Defense Institute, leading security engineers conduct security assessments, with high technical skills, wealth of experience and talent for attacking.

Hacking for security assessments on web applications, networks, embedded devices, control systems and social games, etc., is carried out based on the engineers' strategical ideas, not relying on automated tools.

Our approach is totally different from scan tool-based or common manual-based diagnoses, and contributes to the safe operation of the systems by detecting vulnerabilities and revealing real threats lurking in business administration and organizational operations.

Service Lineup

  • Web Applications
  • Smartphone Applications
  • Internal / External Networks
  • Embedded Devices
  • SCADA / Control Systems
  • Firewalls
  • Games

Incident Response / Forensics

Our incident response service aims for a one-stop service for incident response in the event of security incidents such as targeted attacks to a corporate network from external entities, falsification of web applications and fraudulent access. We support initial response to full-fledged investigation (e.g. forensic survey, malware analysis, log analysis), assist restoration and advice preventative measures.


Sophisticated forensic technology:

Highly experienced forensic engineers are essential for determining the cause of advanced cyberattacks and assessing the full extent of the damage.

Our incident response service is performed by forensic experts who have experience in training experts in law enforcement agencies and privately-owned companies.

Comprehensive analytical capability:

Incidents are resolved by bringing together the intelligence of our forensic engineers, malware analysts, penetration testers well-versed on the view and thought processes of attackers, and other experts.

Supporting CSIRT operations:

We provide a wide range of support for the operation of CSIRT, including initial response, internalizing simple forensic investigations and vulnerability assessments, cyber exercises, and provision of incident response tools.


Viewing recent information security incidents, there are cases where organizations only treat the obvious symptoms, or go to the other extreme with excessive measures.

Many organizations are establishing a structure for incident response, not only to prevent incidents, but also to minimize damage after an incident, and for rapid recovery. We assist by conducting various investigations and providing support.

Training courses

Cyber Defense Institute provides training services such as hacking, forensics and malware analysis.

Content of the training courses are based on practical knowledge gained through incident response and penetration testing. Courses meet wide-ranging needs for human resource development, from persons aiming to be a security expert, desiring to master advanced technologies, cybercrime investigators and others.

Training Course List

  • Hacking
  • Security diagnosis
  • Secure coding
  • Incident response / forensics
  • Cyber intelligence
  • Malware analysis
  • Exploit writing


PIV Gateway™ CA

PIV Gateway™ CA is a cloud-based private certification authority solution that supports the issuance of X.509 certificates as well as platform certificates.

By utilizing PIV Gateway™ CA, it becomes possible to establish an authentication infrastructure equivalent to AAL3, enabling the secure configuration of networks and systems within the organization while reducing operational costs.

PIV Gateway™ CA also supports the issuance of platform certificates. Leveraging platform certificates allows for the verification of device authenticity and traceability, thereby improving supply chain trust.

Oxygen Forensic

OXYGEN FORENSIC is a smartphone forensic tool that can be operated easily by anyone and also can meet needs of deep-level analysis.

The tool is adopted worldwide by police organizations and law enforcement agencies in over 50 countries, including USA, UK, Germany, and Australia. It is specialized for investigating smartphones including iPhone and Android or any other mobile devices such as tablets, supporting over 11,960 kinds of devices.


Immunity's CANVAS makes available hundreds of exploits, an automated exploitation system, and a comprehensive, reliable exploit development framework to penetration testers and security professionals worldwide.

CDI Live

CDIR is a tool to support appropriate initial response. This tool safely collects data to quickly perceive the extent of the compromise and damage, while minimizing the risk of further compromise and impact to operations.


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