Investigation Results and Completion of Response to Ransomware Incident at the Group's Philippine Subsidiary
Pricon Microelectronics, Inc. (the Group's Philippine subsidiary)
Certain systems, servers and terminals at the Philippine site
A ransomware attack targeting certain servers at Pricon. The terminal used as the point of entry was identified, but the initial intrusion route has not been fully determined.
Company response
System recovery was completed on 29 April 2026.
Digital forensic investigation and log analysis by an external cybersecurity specialist organisation.
Implementation of EDR (Endpoint Detection and Response) and enhanced monitoring / review of authentication credentials for all system users / strengthened management of privileged accounts and access rights / enhanced monitoring in cooperation with external specialist organisations / ongoing information security training for employees
Investigation and system recovery costs were incurred. The amount is Not disclosed. The impact on consolidated financial results is expected to be minor.
At this time, the impact on the Company's consolidated financial results is expected to be minor.
The Group will work to improve its overall security level and prevent recurrence. All systems are operating normally, and it has been confirmed that they can currently be operated safely.
If any matters requiring disclosure arise in the future, they will be announced promptly.
| Item | Details |
|---|---|
| Event name | Investigation Results and Completion of Response to Ransomware Incident at the Group's Philippine Subsidiary |
| Date of occurrence | 17 April 2026 (the date on which Pricon detected a system abnormality and confirmed the ransomware infection) |
| Date recognized / date notice received | 17 April 2026 (the date on which Pricon detected a system abnormality and confirmed the infection) |
| Subject Entity | Pricon Microelectronics, Inc. (the Group's Philippine subsidiary) |
| Target Locations / Products | Certain systems, servers and terminals at the Philippine site |
| Cause | A ransomware attack targeting certain servers at Pricon. The terminal used as the point of entry was identified, but the initial intrusion route has not been fully determined. |
| Amount of Impact on Business Performance | Investigation and system recovery costs were incurred. The amount is Not disclosed. The impact on consolidated financial results is expected to be minor. |
| Impact on Earnings Forecast | At this time, the impact on the Company's consolidated financial results is expected to be minor. |
| Scheduled resumption date | System recovery was completed on 29 April 2026. |
| Investigation structure | Digital forensic investigation and log analysis by an external cybersecurity specialist organisation. |
| Measures to prevent recurrence | Implementation of EDR (Endpoint Detection and Response) and enhanced monitoring / review of authentication credentials for all system users / strengthened management of privileged accounts and access rights / enhanced monitoring in cooperation with external specialist organisations / ongoing information security training for employees |
| Outlook | The Group will work to improve its overall security level and prevent recurrence. All systems are operating normally, and it has been confirmed that they can currently be operated safely. |
| Planned follow-up disclosure | If any matters requiring disclosure arise in the future, they will be announced promptly. |
Items this document does not state (12)
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.Certain servers at Pricon were targeted in a ransomware attack, resulting in the encryption of some business data. Investigation and system recovery costs were incurred, but the impact on consolidated financial results is expected to be minor.