South Korea
Japan Airlines suffers third-party data breach exposing passenger info
Japan Airlines (JAL) has announced that a data breach at Amadeus’s Passenger Service System exposed the data of about 92,000 customers. JAL Group, which operates the airlines JAL and Japan Transocean Air, uses the system to handle passenger reservations, ticketing, and check-in. According to its announcement, Amadeus notified the airline on October 23, 2026, that […]
Former pentester used ARTEX AI to steal 8.2 million data records
South Korean police identified seven suspects linked to a cybercrime operation that breached more than 90 organizations in the country, with ARTEX AI pentesting framework used in most of the attacks. According to local media citing the Seoul Metropolitan Police, the gang leader has a background in penetration testing and worked at a cybersecurity company between 2019 […]
Lazarus hackers use post-quantum cryptography for malware delivery
North Korean hackers are using a post-quantum cryptographic mechanism to secure malicious payload delivery in new operations that combine old and new malware. The campaign targets South Korean organizations through a “rather complex” infection chain. Researchers at cybersecurity company Kaspersky dubbed the operation FlashHole and attributed it to the Lazarus Group. Analysis of the malware revealed […]
ARTEX AI, Claude agents used in cyberattacks on South Korean banks
A Chinese-speaking hacker launched cyberattacks that shook the South Korean financial sector earlier this month, using the ARTEX AI penetration testing suite and Claude agents. The actor targeted multiple Korean banks, including Shinhan Bank, KB Kookmin Bank, and Hana Bank, exposing clients ‘ personal data and credit card information, and causing system outages in some […]
South Korea probes bank breaches amid suspected AI-powered attacks
South Korea’s Financial Services Commission (FSC) held an emergency meeting following a series of cyberattacks targeting financial institutions in the country. During the meeting, officials confirmed a data breach at Shinhan Bank and said other cybersecurity incidents affected other South Korean banks, including Kookmin Bank. Shinhan Bank and KB Kookmin Bank are large private South […]
US and South Korea warn of Gunra ransomware targeting govt agencies
U.S. federal agencies and South Korea’s National Policy Agency warned government and critical infrastructure organizations worldwide to secure their systems against Gunra ransomware attacks. In a Monday joint advisory, they said the ransomware group uses a malware variant based on the Conti ransomware source code leaked in February 2022, in attacks targeting a wide range of industry sectors, from […]
South Korea fines telco giant KT $39 million for customer data breach
South Korea’s Personal Information Protection Commission (PIPC) has fined telecommunications giant KT Corporation KRW 53.979 billion ($39 million) over data protection violations. The penalty was imposed for an internal network compromise that persisted for nearly 11 months, between October 8, 2024 and September 5, 2025. PIPC launched an investigation into a potential data breach on September 10, […]
South Korea discloses data breach impacting diplomats worldwide
South Korea disclosed that hackers breached the National Diplomatic Academy’s online education system for ten months and stole personal information belonging to current and former employees of the Ministry of Foreign Affairs (MFA), including overseas diplomats. The incident occurred in April 2025 after an unknown threat actor exploited a vulnerability in the Academy’s server. It […]
Coupang hit with record $409 million data breach fine in Korea
The Personal Information Protection Commission (PIPC), South Korea’s data protection regulator, has fined e-commerce giant Coupang a record 624.6 billion won (roughly $409 million) following a massive data breach affecting more than 37 million customers. Subsidiary Coupang Fulfillment Service was also fined 248 million won for unlawfully collecting, using, and handling customers’ personal and sensitive […]
Iranian hackers targeted major South Korean electronics maker
The Iran-linked hacking group MuddyWater (a.k.a. Seedworm, Static Kitten) launched a broad cyber-espionage campaign targeting at least nine high-profile organizations across multiple sectors and countries. Among the victims are a major South Korean electronics manufacturer, government agencies, an international airport in the Middle East, industrial manufacturers in Asia, and educational institutions. Researchers at Symantec say […]