Murata Manufacturing Co. and Ltd.: Murata Probes Data Breach After Unauthorized Access to IT Systems

Murata Manufacturing Discloses Cybersecurity Breach Impacting Internal and External Data

Murata Manufacturing Co., Ltd. (TSE: 6981), a leading Japan-based electronics manufacturer, has confirmed a cybersecurity breach after detecting unauthorized access to its IT environment on February 28. The company launched an internal crisis response and engaged external cybersecurity experts in early March to investigate the incident.

The breach may have compromised both internal data and information related to external parties, though Murata is still assessing the full scope of the impact. The company is working to identify affected stakeholders and has committed to providing updates, including individual notifications if new details or material financial effects emerge. The potential consequences for business performance remain under evaluation.

Murata, a key supplier of electronic components for communications, automotive, and industrial sectors, serves global customers and is listed on the Tokyo Stock Exchange Prime Market. The company’s stock (JP:6981) currently holds a "Buy" rating from analysts, with a price target of ¥5,100.

Source: https://www.tipranks.com/news/company-announcements/murata-probes-data-breach-after-unauthorized-access-to-it-systems

Murata cybersecurity rating report: https://www.rankiteo.com/company/murata-electronics

"id": "MUR1772785735",
"linkid": "murata-electronics",
"type": "Breach",
"date": "2/2026",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': 'Global customers in '
                                              'communications, automotive, and '
                                              'industrial sectors',
                        'industry': 'Electronics Manufacturing',
                        'location': 'Japan',
                        'name': 'Murata Manufacturing Co., Ltd.',
                        'type': 'Corporation'}],
 'data_breach': {'type_of_data_compromised': ['Internal data',
                                              'Information related to external '
                                              'parties']},
 'date_detected': '2024-02-28',
 'description': 'Murata Manufacturing Co., Ltd. confirmed a cybersecurity '
                'breach after detecting unauthorized access to its IT '
                'environment on February 28. The breach may have compromised '
                'both internal data and information related to external '
                'parties. The company is assessing the full scope of the '
                'impact and working to identify affected stakeholders.',
 'impact': {'data_compromised': 'Internal data and information related to '
                                'external parties',
            'operational_impact': 'Potential consequences for business '
                                  'performance under evaluation'},
 'investigation_status': 'Ongoing',
 'references': [{'source': 'Company Disclosure'}],
 'response': {'communication_strategy': 'Committed to providing updates and '
                                        'individual notifications if new '
                                        'details emerge',
              'incident_response_plan_activated': 'Yes',
              'third_party_assistance': 'Engaged external cybersecurity '
                                        'experts in early March'},
 'stakeholder_advisories': 'Committed to providing updates and individual '
                           'notifications if new details emerge',
 'title': 'Murata Manufacturing Cybersecurity Breach',
 'type': 'Data Breach'}