1. Method for supporting attack detection in a distributed system, wherein a message being sent within said distributed system from a source entity to one or more target entities is transmitted via one or more intermediate entities, and wherein at least one of said one or more intermediate entities—tagging entity—appends an attack information tag to said message indicating whether said message constitutes or is part of an attack, characterized in that a reputation system is provided, said reputation system being configured to receive said attack information tag generated by said tagging entity, and to generate a rating of said attack information tag, wherein at least one of said intermediate entities located between said tagging entity and said one or more target entities functions as evaluating entity that evaluates said tagged message by querying said reputation system for said rating of said attack information tag.