This article presents the subject of European Union Classified Information (EUCI) exchange and handling within the realization of international research and technology projects. The acts and definition covering the legal framework for security information system in the EU are described in the first part.
As a case study, the authors presented the SIRAMIS (Signature Response Analysis on Multi Influences Mines) European Defence Agency project, during which a wide range of the membership countries are required to create one common database for the exchange of information between each other. Post processed data unification should be based not only on common algorithms approved by all participants, but also strict rules for classified and sensitive information must be ensured.
Furthermore, rules for personal security, facility security, risk level valuation and implementation of organizational matters are presented in this article, together with the physical security measures applied. All information was obtained from the data and dissemination process from the SIRAMIS research and the technology project progression.

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