“…For instance, we have designed and developed a distributed IDS system, MetaIDS, within one of the R&D projects led by PSNC within the confines of the Polish Platform for Homeland Security initiative [16]. MetaIDS has been deployed for the Polish National Police [9,6]. MetaIDS is a signature-based IDS that detects threats based on information from multiple sources (internal sensors and external IDS/IPS systems).…”