Part 13/16:

• Strengthening cybersecurity protocols, including changing all VPN credentials, updating software, and deploying advanced virus protection across all terminals.

They also set up a dedicated team to evaluate damages, recover lost data, and prevent future breaches.

Financial and Operational Impact

The cyberattack inflicted severe financial damage:

• Estimated direct losses from halted billing and treatment delays: over 300 million yen (~3 million USD).

• Expenses for cybersecurity consultation, system recovery, and hardware replacements.

• Long-term costs related to reputation damage and trust erosion.