October 2025 Threat Trend Report on Ransomware
This report provides the number of affected systems identified and statistics related to DLS-based ransomware, as well as major ransomware issues in and out of Korea in October 2025. The following is a summary of the report. The statistics on the number of ransomware samples and affected systems use
Phishing Emails Impersonating a Popular OTT Service
AhnLab Security Intelligence Center (ASEC) has recently discovered a phishing campaign distributing emails that impersonate a well-known OTT streaming service. The emails claim there is an issue with the user’s subscription payment and urge recipients to verify the problem. To make the message appear legitimate, the email includes a hyperlink
October 2025 Security Issues in Korean and Global Financial Sector
This report comprehensively covers actual cyber threats and security issues relevant to the finance industry in Korea and around the world. The article includes an analysis of the malware and phishing cases distributed to the financial sector. It also provides a list of the top 10 malware targeting the financial
October 2025 Trends Report on Phishing Emails
This report provides the statistics, trends, and case information on the distribution of phishing emails and attachment-based threats collected and analyzed for one month in October 2025. Below is a portion of the statistics and cases included in the original report. 1) Statistics of Phishing Email Threats In October 2025,
October 2025 Infostealer Trend Report
This report provides statistics, trends, and case information on Infostealer malware such as distribution volume, distribution methods, and disguising techniques, which were collected and analyzed for one month in October 2025. The following is a summary of the report. 1) Data Source and Collection Method AhnLab SEcurity intelligence
September 2025 Security Issues in Korean & Global Financial Sector
This report comprehensively covers real cyber threats and security issues that have occurred in financial corporations both in Korea and abroad. The post includes analysis of malware and phishing cases distributed to the financial sector, the top 10 malware strains targeting the financial sector, and statistics on the leaked Korean
September 2025 Threat Trend Report on Ransomware
This report provides information on the number of systems affected during the month of September 2025, statistics related to the DLS-based ransomware, and key ransomware issues from around the world. Below is a summary of the report. The statistics on the number of ransomware samples and affected systems are
September 2025 Trends Report on Phishing Emails
This report provides the statistics, trends, and case information on the distribution quantity, attachment-based threats, and phishing emails collected and analyzed for a month in September 2025. Below is a portion of the statistics and cases included in the original report. 1) Statistics of phishing email threats In September 2025,
September 2025 Infostealer Trend Report
This report provides statistics, trends, and case information on Infostealer, including distribution volume, distribution methods, and disguises based on the data collected and analyzed in August 2025. The following is a summary of the original report. 1) Data Source and Collection Methods AhnLab SEcurity intelligence Center (ASEC) operates
Statistics Report of Malware Targeting Linux SSH Servers in Q3 2025
AhnLab SEcurity intelligence Center (ASEC) is using a honeypot to respond to and categorize brute-force and dictionary attacks that target poorly managed Linux SSH servers. This post covers the status of the attack sources identified in logs from the third quarter of 2025 and the statistics of attacks performed by
