Overview

• KT’s micro-payment breach now counts 362 victims across additional Seoul districts and nearby cities after the company expanded its footprint beyond initial areas.
• KT says it is tracking cases involving intercepted ARS authentication calls, while some victims reported suspected PASS verification and app-login compromises and media reports described attackers using portable base stations.
• The company revised its tally to 362 victims and 764 transactions and said abnormal attempts were blocked in the early hours of Sept. 5, with no further unauthorized charges since then.
• Lawmakers criticized KT for fragmented disclosures and a narrowly scoped probe, urging direct user notifications, stronger penalties and full-scale investigation.
• The presidential security office will announce comprehensive measures later this month and prepare nationwide inspections of telecom, platform and financial firms, as authorities cite a broader surge in corporate cyber incidents and confirm Lotte Card’s breach of about 3 million customers.