July 2026 Dark Web Breach Incident Trend Report
Note The July 2026 Dark Web Breach Incident Trend Report was compiled based on data breach cases posted on deep web and dark web forums. Due to the nature of some posts, it is difficult to fully verify their accuracy; some posts related to South Korea included AI-generated false data
Security Issues in the Korean & Global Financial Sector in July 2026
Statistics on Malware Distributed to the Financial Sector In Attack Stage 1, phishing (a technique that tricks users into opening malicious links or attachments) had the highest rate at 1.7, Down from 2.3 The previous month. In Attack Stage 2, Dropper/Downloader (a type that downloads additional malware) was the most
Ransom & Dark Web Issues Week 3, March 2026
ASEC Blog publishes Ransom & Dark Web Issues Week 3, March 2026 New Threat Actor CipherForce Claims Cyberattack on South Korean Job Portal New Threat Actor Loki Emerges, Leaks US Citizens’ Personal Data Cybercrime Forum LeakBase Shut Down Again by Russian Authorities
Ransom & Dark Web Issues Week 2, December 2025
ASEC Blog publishes Ransom & Dark Web Issues Weeks 2, December 2025. Source code from a South Korean camping reservation platform sold on DarkForums LockBit 5.0 targets 25 companies worldwide with ransomware attack Agencies from USA and Europe escalate pressure on pro-Russian hacktivists
Mobile Security & Malware Issue 4st Week of May, 2025
ASEC Blog publishes “Mobile Security & Malware Issue 4st Week of May, 2025”
Ransom & Dark Web Issues Week 1, December 2024
ASEC Blog publishes Ransom & Dark Web Issues Week 1, December 2024 Hacker Mikhail Pavlovich Matveev, involved with Lockbit and Conti, arrested in Russia A new ransomware gang, The Argonauts Group A global audit, consulting, and financial services firm in the UK listed as a
Report on DDoSia Malware Launching DDoS Attacks Against Korean Institutions
The Russian hacktivist group NoName057 (16) has been active since March 2022, and their goal is to launch DDoS attacks against targets with anti-Russian views. In November 2024, NoName05, along with the pro-Russian hacktivist groups Cyber Army of Russia Reborn and Alixsec, launched DDoS attacks against the websites of major
Ransom & Dark Web Issues Week 3, October 2024
ASEC Blog publishes Ransom & Dark Web Issues Week 3, October 2024 Pro-Russian hacktivists carried out DDoS attacks on multiple Japanese websites A Japanese tech giant Casio falls victim to the Underground ransomware Threat actor USDoD arrested in Brazil: Accused of international data breaches
Ransom & Dark Web Issues Week 4, September 2024
ASEC Blog publishes Ransom & Dark Web Issues Week 4, September 2024 LockBit ransomware gang attacks major South Korean tire manufacturer Data from a U.S. food delivery service company leaked on BreachForums Pro-Russian hacktivists conduct DDoS attacks on South Korean government websites
Ransom & Dark Web Issues Week 2, September 2024
ASEC Blog publishes Ransom & Dark Web Issues Week 2, September 2024 Pro-Russian Hacktivists: Conducting DDoS Attacks Targeting Taiwanese Government Agencies Customer Data Breach at South Korea’s Largest Shopping Mall: The Role and Threats of E-Commerce Platforms [Ransom] Medusa Ransomware’s New Victim: U.S. Water Service Provider
