 Biological invasions resulting from human activities have substantial impacts on ecosystems worldwide, particularly in Europe where marine invasive alien species, IAS, pose a significant threat to biodiversity. Effective management of IAS relies on accessible, accurate data and information systems such as EZN, AQUANIS, and RIMES. However, their sustainability requires maintenance, continuous updates, and support. Most countries lack specific monitoring programs for marine IAS, and standardization and improvement of monitoring methods are needed. Port monitoring plays a vital role in early detection, while molecular techniques show promise for effective IAS monitoring. Risk screening tools rank TAXA based on invasiveness potential but variations in protocols can yield inconsistent results. Preventing IAS introductions is critical, and measures such as ballast water treatment systems are implemented. Eradication and control efforts have limited success, emphasizing the need for enhanced biosecurity measures. Climate change intensifies IAS impacts on native species and ecosystems, highlighting the importance of considering interactions between climate change and IAS in developing effective management and conservation strategies. Enhancing IAS management in Europe involves securing adequate funding, expanding the list of IAS of union concern, learning from successful biosecurity practices, sustaining information systems, improving monitoring and early warning systems with innovative technologies, enhancing prediction models, conducting integrated impact assessments and mapping cumulative IAS impacts, and considering potential benefits of IAS in ecosystem functioning and services. This article was authored by Stelios Katzinavakis, Sir Joel Nien, Rieke Punteladad, and others. We are article.tv, links in the description below.