Communauté de communes Cœur de Maurienne Arvan

Cœur de Maurienne Arvan, also known as 3CMA or Communauté de communes Cœur de Maurienne Arvan, is a French intercommunal structure that provides shared administrative and technical services to its member municipalities in the Maurienne valley. Its core function includes operating a common information technology infrastructure that supports various local entities such as social services departments, tourism offices, and town halls. By pooling resources, the organisation enables participating communes to deliver services more efficiently and to maintain consistent digital tools across the territory. The entity is headquartered in France, though the specific town of its headquarters is not detailed in the available information. As a communauté de communes, it represents a collective of local governments that have agreed to collaborate on matters of common interest under French law.

The organisation’s distinguishing attributes are evident from its management of a shared IT system that was the target of a crypto‑virus attack on 16 January 2022. Despite the attack, pre‑existing safeguards preserved critical data, highlighting the organisation’s focus on resilience and data protection. During the incident, it coordinated emergency contact channels for essential services such as childcare, urban planning, and utilities, demonstrating a capacity to maintain communication and service continuity under disruption. The event prompted an official complaint and a law‑enforcement investigation, underscoring the organisation’s role in engaging with external authorities when security incidents affect its network. These aspects reflect its positioning as a regional administrative body that balances service provision with cybersecurity preparedness for the benefit of its constituent communes.