Cyber Incident Victim: Conseil départemental des Hauts-de-Seine
Date:
Feb 2023
Location:
France
Summary
The Hauts-de-Seine Department experienced an unauthorized intrusion into its information system, prompting immediate crisis management measures. Professional email systems and digital platforms for schools remained unaffected, while telephone services were slated for restoration shortly. Authorities activated operational and strategic crisis units—coordinating with national cybersecurity agencies and IT security providers—to investigate the breach, restore systems, assess potential data exposure, and mitigate impacts on critical services. The incident was formally reported to France’s data protection authority, and a criminal complaint initiated investigations by specialized cybercrime units. No confirmed data compromise was disclosed during initial response efforts, which prioritized safeguarding user information and operational recovery.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 2 techniques |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
The Département Hauts-de-Seine, a French administrative department, was the target of a cyber intrusion that compromised its information system. The attack, which was reported to have occurred recently, did not affect the department's professional email or the digital environment of colleges. However, the incident was severe enough to warrant a thorough investigation and response from the department and relevant authorities.

The department quickly sprang into action to assess the damage and protect user data. Measures were taken to restore network and application access, and an investigation was launched to determine the cause and scope of the incident. The incident was reported to the relevant authorities, including the Commission nationale de l'informatique et des libertés, and a complaint was filed with the pôle Cyberespace de la gendarmerie nationale.
The investigation, which is ongoing, involves the national cybersecurity agency, ANSSI, and law enforcement agencies. The department is working closely with these agencies to determine the root cause of the incident and to identify the perpetrators. The investigation is expected to take some time, and the department is committed to transparency and keeping the public informed of any developments.
The incident highlights the importance of cybersecurity in protecting sensitive information and maintaining the integrity of information systems. The Département Hauts-de-Seine has taken steps to enhance its cybersecurity measures and to prevent similar incidents from occurring in the future. However, the incident serves as a reminder that no organization is immune to cyber threats, and that constant vigilance is necessary to protect against these threats.
The department's response to the incident has been praised for its swiftness and effectiveness. The measures taken to protect user data and restore network and application access have helped to minimize the impact of the incident. The department's commitment to transparency and keeping the public informed has also been commended.
The incident has also raised awareness about the importance of cybersecurity and the need for organizations to take proactive measures to protect themselves against cyber threats. The Département Hauts-de-Seine has taken steps to educate its employees and the public about cybersecurity best practices and to promote a culture of cybersecurity within the organization.
The investigation into the incident is ongoing, and it is expected that more information will become available in the coming days and weeks. The department is committed to keeping the public informed of any developments and to providing updates on the progress of the investigation. The incident serves as a reminder of the importance of cybersecurity and the need for organizations to take proactive measures to protect themselves against cyber threats.
The Département Hauts-de-Seine has a strong commitment to cybersecurity and has taken steps to enhance its cybersecurity measures. The department has implemented robust security controls and has a team of experienced cybersecurity professionals who work to protect the department's information systems. The department also has a incident response plan in place, which was activated in response to the recent incident.
The incident has not had a significant impact on the department's operations, and services have continued to be delivered to the public without interruption. The department's employees have been cooperative and understanding, and have worked closely with the cybersecurity team to respond to the incident.
The department is committed to learning from the incident and to using it as an opportunity to improve its cybersecurity measures. The incident has highlighted the importance of cybersecurity and the need for organizations to take proactive measures to protect themselves against cyber threats. The department is committed to continuing to enhance its cybersecurity measures and to promoting a culture of cybersecurity within the organization.
The incident has also raised awareness about the importance of cybersecurity and the need for organizations to take proactive measures to protect themselves against cyber threats. The Département Hauts-de-Seine has taken steps to educate its employees and the public about cybersecurity best practices and to promote a culture of cybersecurity within the organization. The department is committed to continuing to educate and raise awareness about cybersecurity and to promoting a culture of cybersecurity within the organization.
