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2024 Report on the State of the Cybersecurity in the Union

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This document marks the first report on the state of cybersecurity in the Union, adopted by ENISA in cooperation with the NIS Cooperation Group and the European Commission, in accordance with Article 18 of the Directive (EU) 2022/2555 (…

ENISA Threat Landscape 2024

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Seven prime cybersecurity threats were identified in 2024, with threats against availability topping the chart and followed by ransomware and threats against data, and the report provides a relevant deep-dive on each one of them by analysing…

Best Practices for Cyber Crisis Management

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This study highlights the complexities behind the notion of cyber crisis and the degree of subjectivity it involves. The elevation of a large-scale cyber incident into a cyber crisis relies predominantly on a political decision, and depends…

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ENISA Maturity Evaluation Methodology for CSIRTs

This is the updated version of the "Study on CSIRT Maturity – Evaluation Process" published by ENISA in 2017. The new version (v.2) reflects values that are consistent with other documents and studies on CSIRT maturity.
National / EU authoritiesPrivate Sector

ECSC 2018 Analysis Report

The 5th Edition of the European Cyber Security Challenge, ECSC2018 was hosted in London during 14th to 17th October. The event was organised by the Cyber Security Challenge UK at the Tobacco Dock, an iconic grade one listed building which has a rich…
National / EU authorities

Cyber Europe 2018 - After Action Report

ENISA has compiled all the information gathered during the exercise and produced an after-action report, identifying challenges and main takeaways, and making useful recommendations for the participants.
National / EU authorities

Reference Incident Classification Taxonomy

This taxonomy resulted from collaboration initiatives such as the annual ENISA/EC3 Workshop which involved CSIRTs, LEAs, ENISA, and EC3. Other examples include the eCSIRT.net taxonomy2 which was developed in 2003, and the eCSIRT.net mkVI taxonomy3…
National / EU authoritiesPrivate Sector

Maturity Reference for CSIRTs – Executive Summary

The target audience for this study is primarily the middle management layer in the CSIRTs, responsible for increasing the team’s maturity. The study will help them to more easily and quickly implement real maturity improvement, following self-…
National / EU authoritiesPrivate Sector

The European Cyber Security Challenge: Lessons Learned report

The ECSC is an initiative of multiple European countries supported by the European Union Agency for Network and Information Security (ENISA) that aims at engaging cybersecurity talent across Europe and connecting high potentials. This report…
National / EU authorities

Cyber Europe 2016: After Action Report

Cyber Europe 2016 was the fourth pan-European cyber crisis exercise organised by the European Union Agency for Network and Information Security (ENISA). Over 1 000 participants working mostly in the ICT sector, from public and private organisations…
National / EU authorities

A good practice guide of using taxonomies in incident prevention and detection

The aim of this document is to provide good practices on using taxonomies for incident detection and prevention by taking into account the input received from the CSIRT community and relevant information from previous ENISA studies. In addition, it…
National / EU authoritiesPrivate Sector