Nidec Jihsun's Server Suffers Unauthorized Access, Leading to Ransomware Infection and Potential Data Leakage

Release Date: 1150805 Announcement Date: 1150804 Announcement Time: 180856 Company Code: 6230 Company Name: Nidec Jihsun Subject: Follow-up report on unauthorized access to our server leading to ransomware infection and potential data leakage Applicable Clause: Clause 26 Date of Incident: 1150622 Explanation: 1. Date of Incident: 115/06/22 2. Reason for Incident: On 115/06/22, our company detected that part of our servers were attacked by network ransomware, causing some information systems, including ERP, to malfunction. A third party claiming to have carried out the attack posted screenshots of partial folder and file name lists on a website operated by a criminal group on the dark web (Dark Web). 3. Handling Process: After commissioning an external professional organization to conduct digital forensics investigation, no clear technical evidence, such as system logs, was found to prove that the data had been leaked externally. 4. Estimated Loss or Impact: While we cannot completely rule out the possibility of data leakage, there is currently no clear evidence of external leakage. Our company will continue to closely monitor the subsequent situation and maintain the monitoring mechanism. If any major facts that should be disclosed according to relevant laws and regulations are found in the future, our company will promptly make the announcement in accordance with the relevant regulations. 5. Amount of Insurance Compensation: Not applicable 6. Improvement Situation and Future Measures: Our company will also adjust the production and shipping schedules as appropriate according to the progress of system recovery. 7. Other Matters to be Stated: None Keywords: