Summary: Casio Computer Co., Ltd. has revealed the impact of a ransomware attack that occurred on October 5, 2024, leading to the compromise of its servers and the leakage of sensitive internal documents. The company acknowledged deficiencies in its cybersecurity measures, particularly against phishing attacks, while assuring that customer data remained secure.

Threat Actor: Unknown | unknown
Victim: Casio Computer Co., Ltd. | Casio Computer Co., Ltd.

Key Point :

• The ransomware attack compromised several systems and leaked personal and business data.
• Data leaked included information on 6,456 employees, 1,931 business partners, and 91 customers, but no customer credit card information was affected.
• Casio identified significant deficiencies in its defenses against phishing and global network security.
• Despite the attack, services like CASIO ID and ClassPad.net remained secure as they operate on separate systems.
• Some employees reported receiving spam emails potentially linked to the attack, but no secondary damage to business partners or customers was reported.