Ransomware Victims Surge in Q4 2025 Despite Decline in Active Extortion Groups

According to a report by ReliaQuest, the number of ransomware victims increased in the fourth quarter of 2025, despite a drop in the number of active extortion groups. Data leaks rose by 50% over the same period. The study is based on data collected by cybersecurity researchers but does not specify the most affected regions or sectors. No additional technical details, such as ransomware families or attack methods, are provided.