February 2026 Infostealer Trend Report
This report provides statistics, trends, and case information regarding the no. of malware distribution cases, distribution methods, and disguise techniques for Infostealer collected and analyzed during the month of February 2026. Below is a summary of the report’s original content. 1) Data Sources and Collection Methods AhnLab SEcurity intelligence
February 2026 Security Issues Related to the Korean & Global Financial Sector
This report comprehensively covers actual cyber threats and related security issues targeting financial institutions in South Korea and abroad. It includes analysis of malware and phishing cases distributed targeting the financial sector, presents the Top 10 major malware targeting the financial sector, and provides statistics on the industry sectors of
February 2026 Phishing Email Trends Report
Statistics on Attachment Threats Types in February 2026, the highest percentage of phishing email attachment threats is FakePage (42%). threat actors sophisticatedly mimic login pages and advertisement pages with HTML and other scripts to trick users into entering data and sending it to a C2 server or to a fake
January 2026 Infostealer Trend Report
This report provides statistics, trends, and case information regarding the distribution quantity, distribution methods, and obfuscation techniques of Infostealer malware collected and analyzed during the month of January 2026. Below is a summary of the original report content. 1) Data Sources and Collection Methods AhnLab Security Intelligence Center (ASEC)
January 2026 Security Issues in Korean & Global Financial Sector
This report comprehensively addresses actual cyber threats and related security issues that have occurred in domestic and international financial sector companies. It includes an analysis of malware and phishing cases disseminated targeting the financial sector, presents the top 10 major malware aimed at the financial sector, and provides statistics on
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,
December 2025 Security Issues in Korean & Global Financial Sector
This report comprehensively covers real-world cyber threats and security issues that have occurred in the financial industry in Korea and worldwide. It includes an analysis of malware and phishing cases targeting the financial industry, a list of the top 10 malware strains targeting the industry, and statistics on the sectors
December 2025 Infostealer Trend Report
This report provides statistics, trends, and case information on Infostealer malware collected and analyzed during the month of December 2025, including distribution volume, distribution channels, and disguising techniques. The following is a summary of the report. 1) Data Source and Collection Method The AhnLab SEcurity intelligence Center (ASEC) operates
MongoBleed (CVE-2025-14847): A Critical MongoDB Memory Leak Vulnerability Hidden for 8 Years
Overview In late 2025, a high-severity memory information disclosure vulnerability that had been lurking in MongoDB for years was finally revealed. Dubbed MongoBleed, this flaw allows unauthenticated attackers to read uninitialized heap memory, potentially exposing sensitive information. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added this vulnerability to
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

