November 2025 Infostealer Trend Report
This report provides statistics, trends, and case information on Infostealer malware collected and analyzed during the month of November 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)
The Shadow of JWT-Based Authentication: A Fatal Threat Behind the Convenience
Overview JWT, which has become the standard for modern web applications and mobile apps, provides the convenience of stateless authentication. However, when operated and managed unsafely, it can become a single point of failure that collapses the entire authentication system. This post introduces the concept and authentication methods of JWT,
November 2025 Security Issues in Korean and 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
November 2025 Trends Report on Phishing Emails
This report provides statistics, trends, and case information on the distribution volume, attachment threats, and other aspects of phishing emails collected and analyzed for one month in November 2025. The following are some of the statistics and cases included in the original report. 1) Statistics of Phishing Email Threats In
Cybersecurity Threat Trends in 2025 and Outlook for 2026
Overview About the Report This report is based on the security content provided through AhnLab’s threat intelligence platform, AhnLab TIP. It examines various security issues and trends from the fourth quarter of 2024 to the third quarter of 2025 and provides a forecast on cybersecurity threats in
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
