What This Report Covers
This edition covers the fourth quarter of 2025 and describes record ransomware activity. It analyzes more than 2,300 confirmed incidents, 125 ransomware groups and 27 industries across 134 countries.
Topics include the top groups and emerging criminal business models, sector trends across manufacturing, technology, healthcare and public services, the most exploited CVEs and initial access vectors, and the concentration of attacks by region and country.
It also reviews real-world incidents affecting public infrastructure and global enterprises, helping teams move from reactive defense to intelligence-driven risk management. See the ransomware glossary entry for the term.
As the final edition of 2025, it also gives a year-end view that security leaders can use for budgeting and planning. Its scale in groups, industries and countries is larger than the earlier editions of the year.
Sector-Specific Intelligence. Global Impact.
Ransomware activity reached record levels in Q4 2025, driven by highly organized threat actors, aggressive exploitation of internet-facing vulnerabilities, and precision targeting of operationally critical sectors.
Brandefense’s Ransomware Trends Report Q4 2025 analyzes 2,300+ confirmed incidents, 125 ransomware groups, and 27 industries across 134 countries, delivering actionable intelligence for security leaders and risk teams.
What’s Inside the Report
- Top ransomware groups and emerging criminal business models
- Sector-based attack trends across manufacturing, technology, healthcare, and public services
- Most exploited CVEs and initial access vectors
- Regional and country-level ransomware concentration
- Real-world incidents impacting public infrastructure and global enterprises
Built by the Brandefense Cyber Threat Intelligence Team, this report helps organizations move from reactive defense to intelligence-driven ransomware risk management.
👉 Download the report to understand what ransomware actors know—and how they operate.