May 2026 Threat Trend Report on Ransomware
Purpose and Scope This report summarizes the quantity of new ransomware samples collected during the month of May 2026, the number of affected systems, statistics on targeted businesses, and major Korean & Global ransomware issues. Statistics on samples and affected systems are based on AhnLab’s detection names, while statistics on
Ransom & Dark Web Issues Week 3, June 2026
ASEC Blog publishes Ransom & Dark Web Issues Week 3, June 2026 Sale of Confidencial Defense Industry Documents in South Korea on Spear Forums Ransomware Attack by Qilin Targeting a South Korean Big Data Solution Company Ransomware Attack by Anubis Targeting a South Korean Semiconductor Equipment
Ransom & Dark Web Issues Week 1, June 2026
ASEC Blog publishes Ransom & Dark Web Issues Week 1, June 2026 Qilin Ransomware Attack Targets South Korean Automation Equipment Company New Data Extortion Group Black X Claims Leak of Internal Data from South Korean Plastic Surgery Clinic Nova Ransomware Attack Targets Department of AI
April 2026 Security Issues in Korean & Global Financial Sector
Statistics on Malware Distributed to the Financial Sector attack Stage 1 Phishing, Attack Stage 2 Backdoor-Downloader-Dropper, and Attack Stage 3 Infostealer-Ransomware were identified as the top malware in the financial sector. The actual distribution files were identified based on MD5 Hash, and it was explained that there may be many
March 2026 Ransomware Trends Report
Purpose and Scope. this report summarizes the number of ransomware samples, number of affected systems, DLS-based statistics, and major Korean & Global ransomware issues identified during the month of March 2026. Key statistics. ransomware sample counts and victimized systems statistics were aggregated by detection name assigned by AhnLab. statistics on
Ransom & Dark Web Issues Week 2, March 2026
ASEC Blog publishes Ransom & Dark Web Issues Week 2, March 2026 Qilin ransomware attack targeting a well-known dermatology clinic in South Korea and the Korean branch of a global advertising company [1], [2] KillSec and Everest ransomware attacks targeting a South Korean exhibition management platform
January 2026 Threat Trend Report on Ransomware
This report provides the number of affected systems confirmed during January 2026, DLS-based ransomware-related statistics, and notable ransomware issues in Korea and abroad. Below is a summary of some information. The statistics on the number of ransomware samples and affected systems were based on the diagnostic names assigned by AhnLab,
Ransom & Dark Web Issues Week 3, January 2026
ASEC Blog publishes Ransom & Dark Web Issues Week 3, January 2026 Qilin Ransomware Targets Korean Specialist in Semiconductor/Display Components & Surface Treatment U.S. DOJ: Access Broker “r1z” Pleads Guilty Qilin Ransomware Targets Vietnam’s National Airlines
December 2025 Threat Trend Report on Ransomware
This report provides the number of affected systems confirmed during December 2025, DLS-based ransomware-related statistics, and notable ransomware issues in Korea and abroad. Below is a summary of some information. The statistics on the number of ransomware samples and affected systems are based on the diagnostic names assigned by
Ransom & Dark Web Issues Week 4, November 2025
ASEC Blog publishes Ransom & Dark Web Issues Week 4, November 2025 Qilin ransomware group claims attack on a Japanese company providing automotive financial services. Everest ransomware group launches data exfiltration attack against Spain’s largest airline. Access to internal systems of Saudi Arabia’s state-owned airport operator
