Unauthorized access to the Japan Gymnastics Association, recovery time of over six months reveals issues

News Summary

The official website of the Japan Gymnastics Association, a public interest incorporated foundation, was illegally accessed and infected with malware on May 27, 2025. The restoration process has been prolonged, and the website is scheduled to reopen in late January 2026. This incident illustrates the challenges that organizations face when recovering from unauthorized access.

What happened?

On May 27, 2025, the Japan Gymnastics Association detected unauthorized access to its official website. Subsequent investigation revealed that the website was infected with malware.

History of the incident:

• May 27: Unauthorized access detected

• June 17: Malware infection announced, temporary website opened

• December 14th: Announcement of recovery outlook

• Late January 2026: Scheduled reopening

  
  

The association stated that the reason the restoration work took more than six months was because "the situation was uncontrollable."

During this time, users will be provided with limited services at a temporary site.

[Information source] ・Announcement on the official website of the Japan Gymnastics Association, a public interest incorporated foundation https://www.jsg.or.jp/

Impacts and points of caution for companies and organizations

There are several lessons that companies can learn from this case:

• Longer recovery times : In the case of malware infection, recovery may take longer than expected.

• Persistent threats : A single response is insufficient; continuous monitoring and response are required

• Impact on users : Risk of loss of trust due to service outages

• Collaboration with experts : Cooperation with external specialists is essential

Ensuring website security is an especially important issue for organizations that handle public information.

Generally considered responses and ideas

Possible steps to recover from a breach include:

• Initial response : Early detection and disclosure of damage

• Cause investigation : Detailed investigation by experts

• Recovery plan : Develop a phased recovery schedule

• Preventing recurrence : Strengthening security measures and continuous monitoring

• Dealing with users : Providing transparent information and restoring trust

This incident shows that security measures are not a one-time response. What is important is to accurately understand and record the current situation when damage occurs.

In the case of the Japan Gymnastics Association, after a lengthy recovery period, they were finally able to reopen. Throughout this process, the organization needed to continually monitor the situation and provide information to users.

When responding to security incidents, a transparent response through visualization and recording will help restore trust in the organization.

Potential for our services to help

PIPELINE's DatalaiQ, a platform for organizing and analyzing large-scale log data, helps understand the situation during incident response. Furthermore, RiskSensor visualizes external risk situations, enabling continuous monitoring of security status after recovery.

Furthermore, by organizing information using threat intelligence, it is possible to provide information to help prevent recurrence.

✦ Conclusion

Thank you for reading this far.

At PIPELINE Inc., we are a group of experts specializing in cybersecurity and threat intelligence, and we face threats on the ground together with our customers every day.

"Even if we have a specialized team in-house, we don't have enough resources ." " I don't know where to start ."

"We want to prepare realistically, assuming that attacks will occur."

Regardless of the size of a company, the current situation is that weak areas of defense are likely to be targeted.

Furthermore, by keeping things to yourself within the company, it is inevitable that things will be overlooked.

That's why we don't focus on idealism, but instead focus on methods that are useful in the field, proposing ways to start small and easily. Even "one small step within your capabilities" can make a big difference in safety.

If you have any concerns, please feel free to contact us. We will work together to find the best way to strengthen your security in the shortest possible time.