A survey by a cybersecurity company found that the number of data breaches publicly reported in 2026 totaled approximately 329 million, up approximately 10-fold from the previous year and approximately 90-fold from the year before that. The number of companies and organizations publicly reporting damage was 224, including approximately 109 in October.
The total number of data breaches publicly reported by domestic web services from January through 27 October 2026 is reported to have reached approximately 329 million. The estimate was compiled by cybersecurity company Macnica.
The number of publicly reported incidents was approximately 10 times the previous year's level, or approximately 2.7 times higher than the year before, and the number of incidents in October reportedly reached approximately 109.
Additional cases include the reported leakage in September of driver's license image data belonging to approximately 1.46 million Times Car users, and the possible leakage in October of up to approximately 53 million records from Sagawa Express. In addition, ransomware-related incidents have reached approximately 232 this year, the highest number since 2020.