Incident Affecting Our Website (Initial Report)
IBIDEN CO.,LTD.
Website operated by the Company
Company response
Suspension of access to the Company's website (server shut down)
As soon as the safety of the Company's website and the accuracy of its posted content can be confirmed
The Company is taking steps to prevent a recurrence.
The Company will investigate external access, restore the site and take steps to prevent a recurrence, and will resume publication as soon as the site's safety and the accuracy of its posted content can be confirmed.
If any matters requiring disclosure arise, the Company will announce them promptly.
| Item | Details |
|---|---|
| Event name | Incident Affecting Our Website (Initial Report) |
| Date of occurrence | Around 7:30 a.m. on Monday, 13 April 2026 (the Company confirmed that information about a site unrelated to the Company was being displayed on its website) |
| Date recognized / date notice received | 13 April 2026 (confirmed by the Company) |
| Subject Entity | IBIDEN CO.,LTD. |
| Target Locations / Products | Website operated by the Company |
| Suspended operations | Suspension of access to the Company's website (server shut down) |
| Scheduled resumption date | As soon as the safety of the Company's website and the accuracy of its posted content can be confirmed |
| Measures to prevent recurrence | The Company is taking steps to prevent a recurrence. |
| Outlook | The Company will investigate external access, restore the site and take steps to prevent a recurrence, and will resume publication as soon as the site's safety and the accuracy of its posted content can be confirmed. |
| Planned follow-up disclosure | If any matters requiring disclosure arise, the Company will announce them promptly. |
Items this document does not state (15)
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.The cause of the unauthorized web page being displayed has not been disclosed. The Company states that it is identifying the route by which the site was accessed from outside.