
Interministerial messaging systems in France play a crucial role in coordinating public policies and communication between various administrations. These digital tools enable smooth and secure circulation of sensitive information while optimizing the responsiveness of ministries to national challenges.
In the face of the growing sophistication of cyber threats, these systems must constantly evolve to ensure the confidentiality and integrity of exchanges. The modernization and securing of these infrastructures are therefore priorities to ensure effective governance and maintain citizens’ trust in public institutions.
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Current interministerial messaging systems in France
Existing tools
The landscape of interministerial messaging systems in France relies on various sophisticated tools and services designed to meet the specific needs of state agents. Among them, Tchap stands out as a secure instant messaging service intended for communications among state agents. This service guarantees the confidentiality of exchanges and the protection of sensitive data.
Another fundamental tool is Melanie2web, an email messaging system tailored to the security requirements of public administration. It allows for smooth communication between ministries while ensuring optimal protection against cyber threats.
Complementary projects and services
Beyond messaging systems, several projects and services complement the state’s digital infrastructure:
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- AgentConnect: Allows state public service agents to connect to web business applications from an existing account.
- WebConf de l’État: A secure web conferencing service for state agents, facilitating remote meetings.
- Funding portal: Offers co-financing and support for projects related to data exploitation and valorization within state administrations.
The State Interministerial Network (RIE)
Established in 2012, the State Interministerial Network (RIE) serves as the backbone of digital communications for administrations. This unified network ensures secure connectivity between different ministries and facilitates the implementation of coordinated public policies. The RIE infrastructure is constantly updated to meet new security and performance requirements.
The management and supervision of these systems are handled by specialized entities such as DINUM and the National Cybersecurity Agency (ANSSI), ensuring robust protection against cyber threats.

Challenges and future perspectives
Modernization and adaptation
In the face of a constantly evolving digital environment, interministerial messaging systems must modernize. The integration of tools like Tchap and Melanie2web represents a first step, but many challenges remain to ensure effective and secure inter-administrative communication.
- Technological evolution: Messaging technologies must keep pace with advancements in cybersecurity. Encryption protocols, for example, must be regularly updated to counter new threats.
- Interoperability: Ensuring compatibility between different messaging systems and platforms is fundamental to streamline exchanges between ministries.
Organizations and initiatives
The DINUM, which replaced DISIC in 2019, coordinates the digital transformation efforts of administrations. It relies on key players such as the General Secretariat of the Government (SGG) and the Council of the State’s Information and Communication System.
- The Etalab mission, integrated into DINUM, works on creating a unique interministerial portal for public data.
- The State Interministerial Network (RIE), overseen by DINUM, continues to expand to provide a secure and efficient digital infrastructure.
Future perspectives
The future of interministerial messaging systems will largely depend on the ability of organizations to anticipate and respond to emerging needs. Collaboration between entities like Renater and various ministries is essential to adapt tools to new functions, such as teleworking or mobility.
The establishment of Security Operations Centers (SOCs) within the RIE, as desired by Stéphanie Schaer, could enhance the resilience of systems against cyber threats.