The Cyber Threat Sharing Service collects sources of existing threats from relevant feeds, and structuring the information using standards to facilitate the exchange of the security threats identified (e.g. MITRE, OASIS). Personalized alerts and relevant information can be provided according to the subscription parameters the CI has requested. This service ensures the mitigation of threats to CI; enhances the coordination within CI establishing exchange methods to prevent, reduce, mitigate and recover from existing threats; and allows the coordination between similar centres in the world to deal with CI threats in a global approach.