Publications

Featured publications

NIS Investments 2025

The annual NIS Investments report presents the findings of a study conducted by ENISA to explore how cybersecurity policy translates in practice across organisations in the EU and its effects on their investments, resources, and operations.

ENISA Threat Landscape 2025

Through a more threat-centric approach and further contextual analysis, this latest edition of the ENISA Threat Landscape analyses 4875 incidents over a period spanning from 1 July 2024 to 30 June 2025. At its core, this report provides an…

NIS2 Technical Implementation Guidance

This report provides technical guidance to support the implementation of the NIS2 Directive for several types of entities in the NIS2 digital infrastructure, ICT service management and digital providers sectors. The cybersecurity requirements for…

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NIS Investments Report 2023

This report aims at providing policy makers with evidence to assess the effectiveness of the existing EU cybersecurity framework specifically through data on how Operators of Essential Services (OES) and Digital Service Providers (DSP) identified…

Good Practices for Supply Chain Cybersecurity

The report provides an overview of the current supply chain cybersecurity practices followed by essential and important entities in the EU, based on the results of a 2022 ENISA study which focused on investments of cybersecurity budgets among…

Building Effective Governance Frameworks for the Implementation of National Cybersecurity Strategies

This study is focusing on the good practices around the set-up and deployment of a governance framework to support the implementation of the NCSS in the EU. The objective is to systematically review existing governance models relevant to the…

A Governance Framework for National Cybersecurity Strategies

This study focuses on the good practices around the set-up and deployment of a governance framework to support the implementation of the NCSS in the EU. The main aim of this statistical outline is to give an overview of the key findings of the…

Demand Side of Cyber Insurance in the EU

The report analyses current perspectives and challenges of Operator of Essential Services (OESs) related to the acquirement of cyber insurance services. Information and statistics are presented according to the selection, acquisition and use of…

NIS Investments 2022

This report marks the third iteration of ENISA's NIS Investments report, which collects data on how Operators of Essential Services (OES) and Digital Service Providers (DSP) identified in the European Union’s directive on security of network and…

Trust Services Security Incidents 2021

This report provides an aggregated overview of the notified breaches for 2021, analysing root causes, statistics and trends. It marks the sixth round of security incident reporting for the EU’s trust services sector. In this round of annual…

Telecom Security Incidents 2021

This report provides anonymised and aggregated information about major telecom security incidents in 2021. The 2021 annual summary contains reports of 168 incidents submitted by national authorities from 26 EU Member States (MS) and 2 EFTA…

Cyber Threats Outreach In Telecom

In this paper, we aim to give guidance to national Authorities and providers of electronic communications networks and services regarding how to strike the right balance and carry out efficient and effective outreach to users about cyber threats…

NIS Investments Report 2021

Following the 2020 NIS Investment publication, this report covers all 27 EU Member States and offering additional insights into the allocation of NIS budgets of OES/DSP, the economic impact of cybersecurity incidents and the organisation of…