Investigation Results of Casio Ransomware Attack and Information Leak

Casio Computer Co., Ltd. (Casio) has officially disclosed the detailed results of its investigation into a significant ransomware attack and information leak that compromised internal systems and sensitive data.

This report sheds light on the causes, the extent of the damage, and the steps Casio is taking to safeguard its operations and stakeholders in the future.

Key Takeaway to Casio Ransomware Attack and Information Leak:

• Casio confirmed that personal information of employees, business partners, and a small number of customers was leaked. Measures are underway to strengthen security and prevent recurrence.

What Happened? The Casio Ransomware Attack Timeline

On October 5, 2024, Casio’s servers were breached through unauthorized access originating overseas. This Casio ransomware attack rendered multiple systems inoperable and resulted in the theft of sensitive internal data.

Despite proactive security efforts, vulnerabilities in phishing defenses and the global network’s security framework enabled the attack.

Investigation Findings: Leaked Information

Casio conducted a forensic investigation with external security specialists to assess the damage. The findings revealed the scope of leaked data, as outlined below:

Notably: No customer credit card information or data from the CASIO ID and ClassPad.net service systems was compromised.

Impact on Stakeholders

• Employees: Information for 6,456 employees was affected, including temporary and overseas staff.
• Business Partners: Data for 1,931 partners, including representatives of overseas group companies, was exposed.
• Customers: Data for 91 Japanese customers who purchased products requiring delivery and installation was leaked.

Steps Taken to Protect Affected Parties

• Affected individuals and organizations are being contacted directly.
• Casio has submitted reports to the Personal Information Protection Commission and relevant overseas authorities.
• No demands from the ransomware group were met, per advice from legal and cybersecurity experts.

Preventive Measures Implemented

To prevent future incidents of this nature, Casio is working under the guidance of cybersecurity experts to:

• Strengthen IT security across its global offices.
• Enhance employee training to recognize phishing attempts and enforce security protocols.
• Revise and optimize internal data management systems.

Real-Life Example: Similar Attacks and Lessons Learned

Ransomware attacks have become a growing concern globally. For instance, the 2021 Colonial Pipeline attack disrupted fuel supplies across the U.S. and cost millions in recovery efforts. Casio’s proactive approach to addressing vulnerabilities highlights the importance of continual security enhancements.

Current Status: Service Restoration

Casio’s systems have largely resumed operation, barring a few individual services. All services have undergone rigorous safety checks before being restored to ensure user security.

Casio’s Call for Cooperation

The company urges stakeholders to refrain from spreading leaked information on social media or other platforms to protect affected individuals. Casio has assured strict legal action against any slanderous or fraudulent activities resulting from this breach.

About Casio Computer Co., Ltd.

Casio is a leading global manufacturer of electronics and technology solutions, renowned for products like G-Shock watches and calculators. For more details, visit Casio’s official website.

Rounding Up

Casio’s ransomware attack and information leak serve as a stark reminder of the evolving cyber threats businesses face.

While the breach exposed vulnerabilities, Casio’s transparent communication and swift action reflect its commitment to data security and customer trust. Moving forward, their strengthened measures aim to prevent such incidents from reoccurring.

FAQs

What caused the Casio Ransomware Attack and Information Leak?

• Vulnerabilities in phishing defenses and the global network’s security allowed the breach.

Was customer credit card data leaked?

• No, customer credit card information was not affected.

What personal data was exposed?

• Information about employees, business partners, and a limited number of customers was leaked.

What is Casio doing to prevent future attacks?

• Casio is strengthening IT security, enhancing employee training, and revising data management systems.

Have all services been restored?

• Yes, most services have resumed after rigorous safety checks.