Worth reading
34Immaterial
0–100. This measures how worthwhile something is to read, not how good or bad the company is.Direction
Deterioration
Direction inferred from the company’s description.Scale
—
Displayed only when the document provides numerical figures.Wording
Avoiding a definitive answer
How definitive the wording is.System disruption caused by a cyberattack
Subject Entity
COTA CO.,LTD.
Target Locations / Products
Systems
Occurrence27 March 2026
This disclosure03/30/2026
Cause
Cyberattacks
Related procedures
Type
Consultation with the police and other relevant authorities
Court or authority
Police and other relevant authorities
Company response
Investigation structure
Investigation conducted in cooperation with external experts
Outlook
The company will continue investigating the scope of the impact, including the potential external leakage of personal information and customer data, taking steps to restore the system, and consulting with the police and other relevant authorities.
Planned follow-up disclosure
If matters requiring disclosure become clear, the company will disclose them promptly.
| Item | Details |
|---|---|
| Event name | System disruption caused by a cyberattack |
| Date of occurrence | 27 March 2026 |
| Subject Entity | COTA CO.,LTD. |
| Target Locations / Products | Systems |
| Cause | Cyberattacks |
| Type of litigation or proceeding | Consultation with the police and other relevant authorities |
| Court or authority | Police and other relevant authorities |
| Investigation structure | Investigation conducted in cooperation with external experts |
| Outlook | The company will continue investigating the scope of the impact, including the potential external leakage of personal information and customer data, taking steps to restore the system, and consulting with the police and other relevant authorities. |
| Planned follow-up disclosure | If matters requiring disclosure become clear, the company will disclose them promptly. |
Items this document does not state (15)
Date recognized / date notice receivedAmount of Impact on Business PerformanceAccounting period in which recognizedImpact on Earnings ForecastPlaintiffDefendantDate of filing / date of actionClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionSuspended operationsScheduled resumption dateMeasures to prevent recurrenceDirectors' and officers' liabilityVoting rights ownership percentage before the changeVoting rights ownership percentage after the change
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.Impact of a cyberattack.
How to read this page
This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.