#Japan #Tokyo #Ransomware #ISMS #Optima Solutions

Practical Ransomware Defense Strategies: A Workshop Overview

On April 23, 2026, information security experts from Optima Solutions Inc. will host a workshop focused on the crucial subject of ransomware defense in Shinbashi, Tokyo. This event, titled "ISMS Operations Tips and Practical Ransomware Countermeasures," aims to educate ISMS (ISO 27001) managers on effective cybersecurity strategies considering the rising threat of ransomware attacks.

The Growing Threat of Ransomware

In recent years, ransomware attacks targeting corporations have surged sharply, with major Japanese companies like Asahi Beer and Askul experiencing significant breaches in 2025. These incidents not only disrupt business operations but also impact the entire supply chain and logistics. As a response to this escalating threat, businesses must prioritize:

• - Strengthening their cybersecurity measures;
• - Establishing robust risk management systems;
• - Ensuring the practical effectiveness of ISMS in real-world applications.

Despite the growing urgency, many ISMS managers report feeling overwhelmed or confused by the complexities of their responsibilities. Common concerns include:

• - Uncertainty stemming from inherited roles and insufficient knowledge;
• - Difficulty in organizing ISMS operations effectively.

To address these issues, Optima Solutions is organizing a collaborative workshop where ISMS managers can share experiences and strategies.

Insights from Industry Leaders

Koji Naka, CEO of Optima Solutions, commented:

"The case studies of companies like Asahi Beer and Askul are relevant to all businesses, regardless of their size or industry. A thorough analysis of these incidents reveals common paths of intrusion and expansion of damage, offering vital lessons from which every company can learn."

The workshop will dissect the aforementioned case studies in detail, providing tangible actions that businesses can implement immediately to bolster their defenses. Furthermore, Naka stresses the need to utilize ISMS as a genuine mechanism to protect companies rather than merely as a superficial certification.

Workshop Structure

The workshop's program will focus on two main themes:

Part 1: Tips for ISMS Operations

Speaker: Seiya Ueno

• - Understanding the fundamentals of ISMS (ISO 27001 regulations and auditing)
• - Risk assessment and response strategies
• - Action lists and timelines for ISMS operations
• - Key points to watch out for during audits

Part 2: Practical Ransomware Countermeasures

Speaker: Koji Naka

• - Learning from the Asahi Beer and Askul case studies
• - The reality of ransomware attacks
• - Immediate actions companies should take
• - Aligning security efforts between management and on-site personnel

Additionally, there will be an opportunity for participants to engage in discussions to facilitate knowledge sharing among ISMS managers.

Who Should Attend?

This workshop is tailored for:

• - Corporate staff managing ISMS who are struggling with implementation;
• - Those seeking insights on preparing for upcoming audits;
• - Individuals interested in mastering ransomware countermeasures on a practical level;
• - Anyone wanting to learn from other companies' ISMS applications.

Event Details

• - Date: April 23, 2026 (Thursday), 14:15 - 16:45
• - Location: AP Shinbashi (1-minute walk from Shinbashi station via JR, Tokyo Metro, Toei, or Yurikamome)
• - Cost: Free
• - Target Audience: Executives and staff from companies with ISMS certification
• - Registration Link: Optima Solutions ISMS Workshop

Instructor Profiles

Koji Naka

CEO of Optima Solutions Inc. Formerly with Sony Corporation, he is a specialist in management systems (Privacy Mark, ISMS) and has extensive consulting experience across Japan. He advocates for enhanced information security to safeguard societal and corporate interests.

Seiya Ueno

Consultant and ISMS manager at Optima Solutions Inc., known for his friendly and empathetic approach to consulting, aiding numerous companies in developing their ISMS, ISO 9001, and ISO 14001 certifications.

About Optima Solutions Inc.

Founded 21 years ago, Optima Solutions specializes in information security consulting and has supported over 3,500 clients in acquiring and renewing certifications like the Privacy Mark and ISMS. As a "New Samurai of Information," the company is committed to enhancing the security standards of Japanese enterprises.

• - Company Name: Optima Solutions Inc.
• - CEO: Koji Naka
• - Location: 5th floor, Cross Office, 1-18-6 Nishi-Shinbashi, Minato, Tokyo, Japan
• - Established: March 2005
• - Investment Capital: 10 million yen
• - Focus: Consulting and services related to personal information protection and information security.
• - Website: Optima Solutions