Casio confirmed it experienced a cyberattack on October 5, 2024, which caused system failures and service disruptions. The company is investigating whether any sensitive or personal data was compromised and has restricted external system access as a precaution. Although the nature of the disruption suggests a possible ransomware attack, no group has claimed responsibility. This comes a year after a separate breach exposed customer data from Casio’s ClassPad.net platform across 150 countries.